Saturday

April 19, 2014

April 19, 2014

Number of results: 23,295

**statistics/probability**

1. The probability that a student passes mathematics is 2/3 and the probability that he passes biology is 4/9. If the probability of passing one course is 4/5, what is the probability that he will pass both courses?
*Saturday, October 23, 2010 at 5:30pm by Anonymous*

**Probability**

I will let a = 1/175,711,536= 5.591145*10^-9 , to save typing. The expected number, among 200,000,000, is L = 2*10^8 a = 1.13823 The probability of P(k) of k winners is given by Poisson statistics: P(k) = L^k*e^-L/k! Probability of 0 winners = 0.32039 Probability of 1 winner...
*Tuesday, March 18, 2008 at 4:38am by drwls*

**statistics**

The below table shows the probabilities generated by rolling one die 50 times and noting the up face. What is the probability of getting an odd up face? roll 1 Probability 0.22 roll2 probability 0.10 roll 3 probability 0.18 roll 4 probability 0.12 roll 5 probability 0.18 roll ...
*Thursday, May 3, 2012 at 8:05pm by sc*

**statistics**

if n units are independent and the probability of each being up is 2/3 then the probability of all n being up is (2/3)^n HOWEVER I can not see your flow chart and therefore can not evaluate parallel paths if there are two ways to get from A to B and the probability of failure ...
*Monday, February 17, 2014 at 8:34pm by Damon*

**Probability and Statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion from the Z score. This is the probability for one shark. The probability for all events is found by multiplying the probabilities ...
*Sunday, April 29, 2012 at 3:06am by PsyDAG*

**Statistics**

statistics homework help A drinking game involves a 14 sided die. Six of the 14 faces are squares A, B, C, D, E,and F for short. The other eight are triangles which are called 1,2,3,4,5,6,7, and 8. Each of the squares is equally likely. but he triangle probability differs from...
*Tuesday, December 18, 2012 at 9:18pm by Anonymous*

**math**

The probability that Luis will pass his statistics test is 0.37. Find the probability that he will fail his statistics test.
*Tuesday, July 12, 2011 at 7:25pm by candy*

**statistics**

With "or", it is unclear whether you want the probability between the scores, above them or below them. Assuming that you want the probability between the Z scores, find table in the back of your statistics text labeled something like "areas under normal distribution" to find ...
*Saturday, September 7, 2013 at 3:39pm by PsyDAG*

**Statistics**

What is an example of a research problem at your organization that would benefit from the use of either descriptive statistics or probability distribution statistics?
*Monday, October 11, 2010 at 3:10pm by Kathy*

**Statistics**

Is that value the Z score or the probability? Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.095) and its Z score.
*Sunday, March 9, 2014 at 8:59pm by PsyDAG*

**Statistics**

Online "^" is used to indicate and exponent, e.g., x^2 = x squared. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. If the events are ...
*Friday, April 12, 2013 at 5:56am by PsyDAG*

**Probability & Statistics**

A basketball player shoots free throws and makes them with probability 1/3. What is the probability the player will miss three in a row?
*Thursday, July 29, 2010 at 5:50pm by anonymous*

**Statistics**

A. Probability of 0 or 1 job offer. B. Probability of 2 or 3 job offers. To find either-or probability, add the individual probabilities.
*Wednesday, May 19, 2010 at 9:48pm by PsyDAG*

**statistics help needed**

Poisson statistics is not the only way to do these problems, but it can provide an approximate result for some. For B, the probability is that of no-green 24 times in a row. (36/38)^24 = (18/19)^24 = 0.273 That was easy For A, add the probabilities of getting green 4,5,6...24 ...
*Sunday, February 22, 2009 at 2:20am by drwls*

**statistics**

The probability of drawing an Ace is 4/52, while the probability of drawing some other card is 48/52. The probability of all events occurring is found by multiplying the probability of the individual events. I hope this helps.
*Tuesday, January 26, 2010 at 7:02pm by PsyDAG*

**statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. Multiply that probability by 2000 to get your second answer.
*Monday, November 12, 2012 at 9:59am by PsyDAG*

**statistics**

For any married couple who are members of a squash club, the probability that the husband has a degree is 2/4 and the probability that the wife has a degree is 1/4. The probability that the husband has a degree given that his wife has a degree is 3/9. A married couple is ...
*Saturday, December 3, 2011 at 8:23pm by Nabiha*

**statistics**

Let a random variable be distributed as shown below X=x : 0,1,2,3,4,5,6 P(x): .1 .09 .2 .15 .16 .2 (a) Find the probability p(6) (b) Find the probability P(3< X < 5) (c) Find the probability P(X < 4) (d) Find the probability P(X > 2)
*Saturday, September 17, 2011 at 11:01am by kim wallace*

**Statistics**

In probability and statistics, mean is used to refer to one measure of the central tendency either of a probability distribution or of the random variable characterized by that distribution. In statistics and probability theory, the standard deviation (represented by the Greek...
*Thursday, October 17, 2013 at 6:05pm by John *

**statistics**

The answer to part a) is 1/2 As for the others, I have never heard of "personal probability" There are two kinds of probability: 1. Empirical Probability which is based on the results of experiments to collect data about an event 2. Mathematical Probability base on the ...
*Sunday, March 9, 2008 at 8:54pm by Reiny*

**statistics math**

The unemployment rate is 5.8% (Bureau of Labor Statistics, April 3, 2003). Suppose that 100 employable people are selected randomly. 1)What is the probability that exactly six people are unemployed (to 4 decimals)? 2)What is the probability that exactly six people are ...
*Sunday, October 18, 2009 at 10:30pm by aaron*

**math/statistics**

Could anyone explaint to me what role the Binomial Theory plays in statistics and probability? Using statistics, we can make statements about a population based on sample data. Probability helps us make those statements. The binomial theory can be used to determine ...
*Tuesday, March 6, 2007 at 10:11pm by Jennie*

**statistics**

Assume a binomial probability distribution has p = .60 and n = 200. c. What is the probability of 100 to 110 successes (to 4 decimals)? d. What is the probability of 130 or more successes (to 4 decimals)?
*Sunday, April 6, 2014 at 9:01pm by Vanessa*

**statistics**

Assume a binomial probability distribution has p = .60 and n = 200. c. What is the probability of 100 to 110 successes (to 4 decimals)? d. What is the probability of 130 or more successes (to 4 decimals)?
*Monday, April 7, 2014 at 5:14pm by vanessa*

**statistics**

The probability of a cherry on each of the two wheels = 1/20, while the middle wheel = 9/20. The probability of all events occurring is found by multiplying the probability of the individual events.
*Tuesday, March 23, 2010 at 4:45pm by PsyDAG*

**Statistics - Probability**

The probability of receiving a "false positive" from a mammogram is 7%. What is the probability that out of 10 mammograms, a patient receives at least 1 false positive?
*Thursday, July 14, 2011 at 10:11am by Ana*

**Statistics**

Oops, I forgot. Here it is, an expected value distribution b. a discrete probability distribution c. none of these d. a continuous probability distribution e. a conditional probability distribution
*Wednesday, October 10, 2012 at 12:42am by Tyson*

**statistics**

odd numbers = 1, 3, 5, 7, 9 even numbers = 2, 4, 6, 8 you are looking for the probability of getting 1, 2, or 3 balls with odd numbers. 5/9*4/8*3/7 = probability of selecting one odd number 5/9*4/8*4/7 = probability of selecting two odd numbers 5/9*4/8*3/7 = probability of ...
*Monday, September 13, 2010 at 10:25pm by PsyDAG*

**statistics**

odd numbers = 1, 3, 5, 7, 9 even numbers = 2, 4, 6, 8 you are looking for the probability of getting 1, 2, or 3 balls with odd numbers. 5/9*4/8*3/7 = probability of selecting one odd number 5/9*4/8*4/7 = probability of selecting two odd numbers 5/9*4/8*3/7 = probability of ...
*Monday, September 13, 2010 at 10:25pm by PsyDAG*

**probability and statistics**

Four trials x 50% probability of a red each time = 2
*Monday, November 24, 2008 at 5:39pm by drwls*

**statistics - probability**

A total of 16 mice are sent down a maze, one by one. From previous experience, it is believed that the probability a mouse turns right is .38 a) What is the probability that 8 or fewer turn right? b) What is the probability that 8 or more turn right? c) What is the probability...
*Friday, October 12, 2012 at 2:01pm by andy*

**statistics/probability**

What is the probability of pat choosing a black marble
*Saturday, October 23, 2010 at 5:30pm by Hailey*

**statistics/probability**

What is the probability of pat choosing a black marble
*Saturday, October 23, 2010 at 5:30pm by Hailey*

**statistics/probability**

What is the probability of pat choosing a black marble
*Saturday, October 23, 2010 at 5:30pm by Hailey*

**Statistics**

Probability of winning = 12/52 = 3/13 Probability of losing = 40/52 = 10/13 Probability of losing = 3 1/3 times the probability of winning. What would you consider fair? X * 3 1/3 = 5
*Sunday, September 26, 2010 at 11:00pm by PsyDAG*

**Statistics/Probability**

And please disregard the probability of W question, It's .33 I'm pretty sure
*Sunday, July 7, 2013 at 12:00pm by y912f*

**probability and statistics I NEED HELP**

The MSU basketball team is playing OU. If the probability that MSU wins the game is 0.68 and the probability that OU wins is 0.27. 1. Find the probability that MSU or OU wins. 2. Find the Probability that there is a tie.
*Wednesday, May 11, 2011 at 9:17pm by Emily*

**Statistics**

Red has probability .30 and black has probability .70. What is the probability that patron will win all ten wagers if alternating between red and black on each wager? What would be the standard deviation?
*Tuesday, February 21, 2012 at 8:04pm by Joe Dee.*

**Statistics**

Hint: You don't want the probability from mean to z. Remember the problem is asking "120 or less" or "170 or more" for the probability. You use those values. Once you have those values, add them together for the total probability.
*Tuesday, August 28, 2012 at 6:12pm by MathGuru*

**statistics**

if Z is a standard normal variable, find the probability. the probability that z lies between -2.41 and 0
*Tuesday, May 25, 2010 at 5:03pm by shasha*

**Statistics**

With replacement, the probability of selecting a good apple stays at 60/80=3/4. For a two-step experiment, the probability is the product of individual steps, hence, probability of select a good apple in each pick is (3/4)^2=9/16
*Monday, July 15, 2013 at 8:10am by MathMate*

**statistics**

A mini-computer system contains two components, A and B. The system will function so long as either A or B functions. The probability that A functions is 0.95, the probability that B functions is 0.90, and the probability that both function is 0.88. What is the probability ...
*Saturday, March 5, 2011 at 3:54am by Paula*

**Probability**

Please note that your School Subject is NOT college. It's probably Math or Probability or Statistics.
*Tuesday, October 6, 2009 at 1:02pm by Ms. Sue*

**probability and statistics**

The MSU basketball team is playing OU. If the probability that MSU wins the game is 0.68 and the probability that OU wins is 0.27. 1. Find the probability that MSU or OU wins. 2. Find the Probability that there is a tie.
*Wednesday, May 11, 2011 at 7:16pm by Emily*

**Statistics**

2, 4 or 6, each with 1/6 probability. To find either-or probability, add the individual probabilities. Primes are 2, 3 or 5. Use same process.
*Tuesday, May 17, 2011 at 5:22pm by PsyDAG*

**Probability and statistics**

The probability that at most 3 tosses of a balanced dice are required to get a prime number on top is equal to a. 7/8, b.1/4, c. 1/2, d.3/4.
*Thursday, March 1, 2012 at 12:32am by Arun*

**Statistics**

That would the probability of 1 - probability of no tails. 1 - .5^7 = ?
*Wednesday, November 17, 2010 at 5:22am by PsyDAG*

**statistics**

Suppose that each unit of a system is up with probability 2/3 and down with probability 1/3. Different units are independent. For each one of the systems shown below, calculate the probability that the whole system is up (that is, that there exists a path from the left end to ...
*Monday, February 17, 2014 at 8:34pm by sam*

**Statistics**

Suppose we want to determine the (binomial) probability (p) of getting 4 heads in 15 flips of a 2-sided coin. Using the Binomial Probabilities Table in Appendix B of the text, what values of n, x and p would we use to look up this probability, and what would be the probability?
*Thursday, October 13, 2011 at 8:43am by destiny*

**statistics**

Try a binomial probability table or use a binomial probability function, which is this: P(x) = (nCx)(p^x)[q^(n-x)] For (A) x = 3 n = 15 p = .20 q = .80 (q is 1-p) For (B) Using a table might be easier for this one. Find P(0), P(1), P(2), P(3), P(4), and P(5). Add together, ...
*Sunday, October 7, 2012 at 9:46am by MathGuru*

**Statistics**

Use the binomial probability function: P(x) = (nCx)(p^x)[q^(n-x)] n = 10 x = 0,1 p = 0.10 q = 1 - p = 0.90 Find P(0), P(1). Add together for your probability. Note: You can also use a binomial probability function table with the values listed to find the probability as well. ...
*Wednesday, April 10, 2013 at 3:00pm by MathGuru*

**Statistics**

Find P(0), then take 1 - P(0) for your probability (since the problem says "what is the probability that at least one" is defective). Using the binomial probability function (you can use a binomial probability table as well): P(x) = (nCx)(p^x)[q^(n-x)] n = 4 x = 0 p = 17/53...
*Sunday, September 9, 2007 at 9:58pm by MathGuru*

**statistics**

1)Let X have a normal distribution with mean 6 and standard deviation 3. a) What is the probability that X > 8.7 2)What is the probability that X<0? 3)What is the probability that |X-6| > 1.9 ? I have got so far: P(Z > 0.9) but I do not know where to go from here! ...
*Sunday, October 7, 2012 at 2:22pm by rachel*

**Economics/Statistics**

1. Assume that q and z are two random variables that are perfectly positively correlated. q takes the value of 20 with probability 0.5 and the value of zero with probability 0.5, while z takes the value of 10 with probability 0.5 and the value of zero with probability 0.5. ...
*Sunday, December 6, 2009 at 3:53am by Susan*

**statistics**

a. The probability of being a senior citizen = .15. The probability of a senior citizen getting the flu = .12. The probability of both/all events occurring is found by multiplying the individual probabilities. Use the same process for the remaining problems.
*Tuesday, October 30, 2012 at 11:09am by PsyDAG *

**statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. If the events are independent, the probability of both/all events occurring is determined by ...
*Tuesday, February 18, 2014 at 1:04am by PsyDAG*

**Statistics and Probability**

In a game of skill, a player has probability 1/3,5/12,1/4 of scoring 0,1,2 respectively and the game ends when he scores a zero. Assuming independence of trials, find the probability of the total score being 'n' when the game ends?
*Friday, October 7, 2011 at 11:18pm by Saurabh*

**Statistics**

a) Yes, because of replacement, the probabilities do not change for the second card. b, c) probability of both events occurring is found by multiplying the probability of the individual events. d) probability of either-or events occurring is found by adding the probability of ...
*Friday, April 15, 2011 at 1:03pm by PsyDAG*

**Statistics**

a) Yes, because of replacement, the probabilities do not change for the second card. b, c) probability of both events occurring is found by multiplying the probability of the individual events. d) probability of either-or events occurring is found by adding the probability of ...
*Friday, April 15, 2011 at 1:03pm by PsyDAG*

**statistics**

50 question multiple choices with A, B, C, D Probability of an unsual score? Probability of between 20 and 30 correct inclusive?
*Saturday, November 10, 2007 at 9:45am by Anonymous*

**statistics**

Here is the easiest way to do this problem. Use a binomial probability table. n = 5 x = 0, 1, 2 p = .75 Add P(0), P(1), and P(2). This will be your probability. I hope this helps.
*Tuesday, October 18, 2011 at 8:02pm by MathGuru*

**Statistics**

Find the normal approximation for the binomial probability that x = 5, where n = 12 and p = 0.7. Compare this probability to the value of P(x=5) found in Table 2 of Appendix B in your textbook.
*Thursday, October 20, 2011 at 7:50am by jane*

**Statistics-Probability**

Consider a binomial random variable X with parameters(4,1/2). Find the conditional probability mass function of X given that X is odd
*Wednesday, January 25, 2012 at 3:28am by sand*

**Probabilty/Statistics**

i need to learn probability & statistics. completly.
*Friday, February 8, 2008 at 4:02pm by sai*

**Statistics**

If I am interpreting you table correctly, the probability of being a man (M) is 528/991 (total men dividing by the grand total) and the probability of being a heavy smoker (HS) is total HS divided by the grand total. The probability of either one event or another occurring is ...
*Saturday, July 18, 2009 at 3:40pm by PsyDAG*

**Statistics**

Using formula P(x) = x/15 For each of the values x = 1, 2, 3, 4, and 5. a. probability distribution of x. b. Show that the probability distribution of x satisfies the properties of a discrete probability distribution. c. mean of x. sketch the two specified normal curves on the...
*Monday, October 26, 2009 at 2:35pm by Chinadoll*

**statistics**

use the normal distribution to approximate the desired probability. find the probability that in 200 tosses we will obtain at least 40 fives.
*Saturday, October 16, 2010 at 4:08pm by monique*

**Probability and statistics**

6. The probability that at most 3 tosses of a balanced dice are required to get a prime number on top is equal to Choose one answer a. 7/8 b. ¼ c. ½ d. ¾
*Friday, March 2, 2012 at 3:24am by Arun*

**Probability and statistics**

8. A random variable X takes exactly the 5 values 1, 2,3,4,5, all with same probability. The mean of X is Choose one answer a. 2.5 b. 15 c. 7.5 d. 3
*Friday, March 2, 2012 at 3:25am by Arun*

**statistics**

Assume a binomial probability distribution has p = .60 and n = 200. a)What are the mean and standard deviation (to 2 decimals)? b)Why can the normal probability distribution be used to approximate this binomial distribution? c)What is the probability of 100 to 110 successes (...
*Saturday, April 5, 2014 at 11:42pm by Vanessa*

**statistics - conditional probability**

Event A has probability 0.9 of occurring. Event B has 0.2 chance of occurring if, and only if, event A has occurred. What is the overall probability that event B will occur? I'm so confused. This seems so simple, I'm not sure why I can't reason through it. They're not ...
*Wednesday, September 25, 2013 at 10:19pm by Pam*

**statistics - conditional probability**

Event A has probability 0.9 of occurring. Event B has 0.2 chance of occurring if, and only if, event A has occurred. What is the overall probability that event B will occur? I'm so confused. This seems so simple, I'm not sure why I can't reason through it. They're not ...
*Wednesday, September 25, 2013 at 10:20pm by Pam*

**statistics**

Hi Shanice, Numbers in total : 1,2,3,4,5,6,7,8 In the first draw : 2 was selected, therefore the probability of drawing a 2 is 1/8. (since there is only one 2 in the list) In the second draw, 3 was selected. The probability is again 1/8. Therefore the overall probability is: 1...
*Thursday, October 10, 2013 at 10:41pm by Swaastikaa*

**Statistics**

In a particular suburb 30% of housholds have installed electronic security systems. If 2 households are chosen at random from this area, what is the probability that neither has installed a security system? Using the binomial probability function for this problem: P(x) = (nCx...
*Monday, February 26, 2007 at 3:30pm by Jason L*

**statistics**

If df = 10 and P = .01, t = 3.169 From a table in my statistics text labeled "distribution of t probability."
*Wednesday, June 22, 2011 at 10:54pm by PsyDAG*

**statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. OR… what is the probability of being higher than the mean in a normal distribution?
*Sunday, May 12, 2013 at 11:25am by PsyDAG*

**Statistics**

Use the binomial probability function. If you use a binomial probability table, this problem will be easily solved. In most tables, you will need x, n, and p. x = 8, n = 10, and p = .5 (look up the probability in the table using those values). I hope this will help.
*Sunday, March 13, 2011 at 5:33pm by MathGuru*

**statistics**

You can use a binomial probability table to determine the probability. Find P(18) through P(25), then add all the probabilities together for a total.
*Monday, November 14, 2011 at 2:32pm by MathGuru*

**statistics**

From a bag containing 6 black and 4 white balls, 2 balls are selected,one after the other,without replacement. Find (a) the probability that they are both black (b)the probability that they are both the same colour, (c) probability that they are different colours.
*Saturday, May 21, 2011 at 10:16am by Moses joseph*

**Statistics**

The probability of not hitting oil is .8 The probability of not hitting oil in 5 tries is .8^5 = .32768. Ergo, the probability of getting at least 1 hit is (1-.32768) = .67232
*Wednesday, February 3, 2010 at 7:31pm by economyst*

**statistics**

There is a probability of 1 for getting the first card. Assuming that you are the only one being dealt, once the first card is obtained, the probability of getting the second card for the flush is 12/51. For the third card. it is 11/50. From this, you should be able to figure ...
*Saturday, November 10, 2007 at 9:46am by PsyDAG*

**statistics**

Event Probability Too much enamel 0.25 Too little enamel 0.2 Uneven application 0.35 No defects noted 0.42 (1) What is the probability of a paint defect? What is the probability of a paint defect which includes an improper amount of paint?
*Wednesday, September 29, 2010 at 6:57pm by Jordan*

**statistics**

I need to post some thought on using either the multiplication rule or probability to answer a question on my online statistics.
*Sunday, July 10, 2011 at 3:07pm by keri*

**statistics**

Use of normal distribution to approximate the desired probability. Find the probability of getting at least 30 fives in 200 tosses of a fair 6 sided die.
*Friday, October 8, 2010 at 10:58pm by Lori*

**statistics**

Consider a binomial experiment with 20 trials and a probability of 0.45 on a single trial.Use the normal distribution to find the probability of exactly 10 successes.
*Friday, March 21, 2014 at 10:18pm by john*

**Statistics**

You can use a binomial probability table, or calculate by hand using the following formula: P(x) = (nCx)(p^x)[q^(n-x)] p = .39 q = 1 - p n = 12 For (a): find P(3) For (b): find P(0),P(1),P(2),P(3). Add for a total, then subtract from 1 for your probability. For (c): find P(0...
*Saturday, March 30, 2013 at 1:18pm by MathGuru*

**Easy Statistics**

The probability Joe is at work is 49%,. The probability Joe is at home is 25%. What is the probability Joe is neither at work nor at home? a) 39% b)74% c)52% d) 26% *I personally think it is a or c. I am just needing some help thanks!
*Friday, December 6, 2013 at 9:22pm by Dawn*

**statistics**

Suppose that 50 identical batteries are being tested. After 8 hours of continuous use, assume that a given battery is still operating with a probability of .70 and has failed with a probability of .30. What is the probability that between 25 and 30 batteries (inclusive) will ...
*Wednesday, December 26, 2012 at 9:14pm by Camela*

**Statistics - Probability**

Probability of choosing ONLY good funds from the US market = (5/6)*(4/5) = 2/3 Probability of choosing ONLY good funds from the foreign market = (3/4)*(2/3)=2/4=1/2 Probability of choosing ONLY good funds from both markets = (2/3)*(1/2)=1/3 Probability of choosing at least one...
*Sunday, April 8, 2012 at 11:04pm by MathMate*

**Statistics**

The experiment consists of 10 bernoulli (either true or false) experiments over one week. The probability of success p is 0.3 (so failure, q=0.7) The probability does not change throughout the week. This is a binomial distribution, where the probability of r success out of n ...
*Tuesday, June 12, 2012 at 5:00pm by MathMate*

**statistics**

Ignoring twins and other mutiple births, assume babies born at a hospital are independent events with the probability that a baby is a boy and the probability that a baby is a girl both equal to 0.5. Referring to the information above, the probability that at least one of the ...
*Wednesday, September 19, 2007 at 4:53pm by Anonymous*

**Statistics**

Events and are mutually exclusive. Suppose event occurs with probability and event occurs with probability . Compute the probability that occurs or does not occur (or both). Compute the probability that either occurs without occurring or and both occur.
*Monday, April 8, 2013 at 1:07pm by Jack*

**Statistics**

Use a binomial probability table or a formula like the following: P(x) = (nCx)(p^x)[q^(n-x)] For a): Find P(2) For b): Find P(2), P(3), and P(4). Add together for your probability. For c): Find P(0) and P(1). Add together for your probability.
*Tuesday, February 12, 2013 at 5:18pm by MathGuru*

**Statistics -- Probability**

I am confused too. If "the probability a woman is an actress is 0.550", how can the probability a woman is an actress, given that she’s a musical performer be .785. Do you mean .785 of the .550? The same applies for the man as a ballet dancer. I hope this helps. Thanks for ...
*Friday, April 17, 2009 at 3:19pm by PsyDAG*

**AP Statistics**

if the probability of a swan drowning is .27, find the probability of exactly 4 out of the 7 swans drowning.
*Wednesday, January 6, 2010 at 9:28pm by Belle*

**Statistics**

This is the probability of drawing a 5 and a 3. P(5) = 1/6 P(3) = 1/6 The probability of both/all events occurring is found by multiplying the individual events.
*Wednesday, November 17, 2010 at 5:24am by PsyDAG*

**statistics**

Probability of one tire NOT exploding = 1-80%=0.2 Probability of ALL FOUR tires NOT exploding = 0.2^4 = 0.0016
*Monday, May 28, 2012 at 11:15am by MathMate*

**statistics**

The probability that a house is burglarized in the city is 5%. If 50 houses are randomly selected, what is the probability that none will be burglarized?
*Saturday, July 14, 2012 at 9:15pm by Sherry*

**Statistics**

A total of 16 mice are sent down a maze, one by one. From previous experience, it is believed that the probability a mouse turns right is .38 a) What is the probability that exactly 8 of these 16 mice turn right? b) What is the probability that 8 or fewer turn right? c) What ...
*Friday, October 12, 2012 at 2:58pm by please help*

**statistics**

If the probability of running out of gas is .03 and the probability the electronic starting system will not work is .01 a.) what is the probability there will be enough gas and that the starting system will work? assume the two events are independent b.) when may independence ...
*Friday, September 2, 2011 at 1:11am by kkg*

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