Monday

October 20, 2014

October 20, 2014

Number of results: 94,076

**7th Grade Math stuffs**

Compare probabilities of independent and probabilities of dependent events. Any examples???
*January 17, 2013 by lazyburrito*

**Math**

Can someone please help me. A single card is selected from a standard 52-card deck. B= the drawn card is black; R= the drawn card is red; Q= the drawn card is a queen; F= the drawn card is a face card ( a king, queen or jack). Without finding the probabilities, determine if B ...
*December 1, 2012 by James*

**math**

A single card is selected from an ordinary deck of cards. The sample space is shown in the figure below. Find the probabilities. (Enter the probabilities as fractions.) (a) P(two of diamonds) 1 (b) P(two) 2 (c) P(diamond) 3
*June 7, 2013 by Jean Claude*

**math probablity- Respond as soon as possible **

Assume a family is planning to have three children. 1. Why do probabilities centered around this scenario represent the same probabilities as those for flipping three coins
*April 26, 2013 by Angela*

**Probability**

Can someone please help me. A single card is selected from a standard 52-card deck. B= the drawn card is black; R= the drawn card is red; Q= the drawn card is a queen; F= the drawn card is a face card ( a king, queen or jack). Without finding the probabilities, determine if B ...
*December 1, 2012 by James*

**Probability**

Can someone please help me. A single card is selected from a standard 52-card deck. B= the drawn card is black; R= the drawn card is red; Q= the drawn card is a queen; F= the drawn card is a face card ( a king, queen or jack). Without finding the probabilities, determine if B ...
*December 2, 2012 by Kelsey*

**Help with Calculating Probabilities**

Anon: Do you know how to calculate probabilities like P10, P20, P30...? I do not understand lot of this statistics stuff and desperately need help. Thanks
*September 13, 2012 by Bev*

**Stats**

If there are only two possible outcomes to an experiment then... A.) the two corresponding probabilities must each be.50. B.) the two corresponding probabilities could be any numbers between 0 and 1, but must add up to 1. C.) the two corresponding probabilities could each be ...
*November 2, 2011 by Mandy*

**statistics**

A professional gambler claims that he has loaded a die so that the outcomes of 1,2,3,4,5,6 have corrresponding probabilities of 0.1, 0.2, 0.3, 0.4, 0.5, and 0.6. Can he actually do what he has claimed? Is a probablility distrubion described by listening the outcomes along with...
*May 29, 2011 by Jessica*

**math**

you roll a number cube. what are the odds in favor of rolling a 1 or a 5?thanks. There are 6 sides of a cube. You want one of 2 numbers to show up. So it's 2/6 chance....or 1/3 Matt I assume that you are talking about a die (Singular for "dice"), it has a total of 6 sides. ...
*April 13, 2007 by dillon*

**math**

Three boxes, labeled A,.B. C, contain 1 red and 2 black balls, 2 red and 1 black balls, and 1 red and 1 black ball, respectively. Compute the terminal probabilities by using the multiplication technique. Then add the terminal probabilities for all the outcomes in which the ...
*July 7, 2013 by Annonymous*

**Statistics**

Suppose you conduct a study and find that the probability of having a baby boy is 60%. Now suppose three of your relatives are going to have babies. a) Build a tree diagram showing all the conditional probabilities and joint probabilities associated with the sex of the three ...
*May 10, 2008 by Danny*

**Statistics**

Suppose you conduct a study and find that the probability of having a baby boy is 60%. Now suppose three of your relatives are going to have babies. a) Build a tree diagram showing all the conditional probabilities and joint probabilities associated with the sex of the three ...
*May 11, 2008 by Danny*

**Algebra, Need help with last part.Thank you**

A single card is selected from an ordinary deck of cards. The sample space is shown in the figure below. Find the probabilities. (Enter the probabilities as fractions.) P (two of hearts0 I got 1/52 correct P ( two)I got 4/52 correct P (heart)I am not sure.
*May 26, 2014 by Mary Ann *

**Statistics-Matrix of Transition Probabilities**

Given the following matrix of transition probabilities, write three equations that, when solved, will give the equilibrium state values. P = large bracket with a b on top and c d directly under that, closed large bracket. Thanks.
*February 6, 2012 by Lisa*

**math**

Find the requested probabilities. P(B) = 1/5
*September 11, 2012 by Anonymous*

**harvard**

6. For Design 3, consider the probability of a random individual in South Dorchester being sampled; and the probability of a random individual in Harbor Islands being sampled. These probabilities are approximately the same as the probabilities calculated using:
*December 8, 2012 by jasonsie*

**Statistics**

A roster contains the names of 12 students from the School of Math, Science and Engineering (MSE) and 8 students from the Dreeben School of Education (DSE). Determine the probabilities of randomly selecting the following if the selection is done without replacement: A) An MSE ...
*March 7, 2011 by James*

**Mathematics**

Please help... In a 200 m swimming race between 8 boys, the probability of Omar winning the race if he is in one of the two outside lanes is 1/4. If he is in any of the other lanes, the probability of Omar winning is 1/3. If the lanes are drawn at random, what is the overall ...
*May 29, 2007 by Elizabeth*

**math**

If A and B are independent events, P(A) = 0.35, and P(B) = 0.55, find the probabilities a) P(A intersected B) b) P(A united B)
*February 28, 2011 by sam*

**Finite Math**

Let A,B be events in a sample space. you are given the following probabilities: P(A)=0.8, P(B|A)=0.3, P(B|A^c)=0.8 Find: 1) P(B) 2) P(A|B) 3) P(A^c|B^c)
*July 23, 2012 by Preet*

**Math/230**

A 350 word response how to compute probabilities using z score
*March 14, 2013 by Mike*

**math**

Could someone please describe two main differences between classical and empirical probabilities.
*February 17, 2011 by Dave*

**Math**

A license plate is to consist of two letters followed by three digits. How many different license plates are possible if the first letter must be a vowel, and repetition of letters is not permitted, but repetition of digits is permitted? For the first letter, how many vowels ...
*March 25, 2007 by Carlos*

**math**

Assume that your sample space is S = {O1, O2, O3, O4, O5, O6 } with associated weights (probabilities) w1 = 0.15, w2 = 0.25, w3 = 0.10, w4 = 0.20, w5 = 0.15, and w6 = 0.15. Determine the probability of the following events: {O3 }∩{O5 }:
*September 29, 2010 by Tiff*

**Math**

Random variable X is normally distributed with mean 10 and standard deviation 2. Compute the following probabilities. a. Pr(X<10) b. Pr(X<11.04) I don't know where to start.
*November 10, 2011 by Sally*

**Math**

in a family with two children, what are the probabilities of the following outcomes, assuming that the birth of boys and girls is equally likely?
*January 24, 2010 by Judy*

**Math Probabilities **

P(A or B) = P(A) + P(B) − P(A and B) when 1. A and B are mutually exclusive 2. A and B are complements 3. A and B occur together 4. A and B are dependent I am pretty confused on this one help will be great :)
*September 29, 2013 by Alex*

**math**

A and B are events defined on a sample space, with the given probabilities. Find P(A and B). (Give your answer correct to two decimal places.) P(A | B) = 0.43 and P(B) = 0.75
*May 28, 2013 by DeeDee*

**Math/Statistics**

A and B are events defined on a sample space, with the given probabilities. Find P(A and B). (Give your answer correct to two decimal places.) P(A | B) = 0.43 and P(B) = 0.75
*May 29, 2013 by Nora*

**Probability**

There are three investment plans for your consideration. Each plan calls for an investment of $25,000 and the return will be one year later. Plan A will return $27,500. Plan B will return $27,000 or $28,000 with probabilities of 0.4 and 0.6, respectively. Plan C will return $...
*February 1, 2009 by Julie*

**math**

One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
*November 15, 2012 by Andrew*

**math**

One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
*November 17, 2012 by Katarzyna*

**math**

One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
*November 18, 2012 by Katarzyna*

**Math**

I'm not sure how to do this question. Consider the experiments involving rolling a single die once. Give the probabilities of the event described. What is P (even or prime)?
*December 6, 2010 by Rena *

**statistics math**

MEAN =10 & STANDARD DEVIATION =2. FIND THE PROBABILITIES: 9.4 X 10.6 i have 2 different answers but am checking the answer. thank you one is 0.6179 the other is 0.2358
*March 8, 2011 by Jeannie *

**Math**

If independent events have probabilities p and q, what are the odds of at least one of the events occurring?
*February 22, 2011 by Brian*

**math**

each set of probabilities is associated with a rolling cube. What numbers are marked on the faces of each cube? P(2)=1/3 P(4)=1/3 P(6)=1/3
*March 23, 2012 by Max*

**accounting**

A city is served by two newspapersthe Tribune and the Daily News. Each Sunday reader purchases one of the newspapers at a stand. The following transition matrix contains the probabilities of a customers buying a particular newspaper in a week, given the newspaper purchased ...
*November 15, 2011 by Zanobia*

**accounting**

A city is served by two newspapersthe Tribune and the Daily News. Each Sunday reader purchases one of the newspapers at a stand. The following transition matrix contains the probabilities of a customers buying a particular newspaper in a week, given the newspaper purchased ...
*July 26, 2014 by bcky1958*

**Math/Statistics**

Suppose that A and B are events defined on a common sample space and that the following probabilities are known. Find P(A or B). (Give your answer correct to two decimal places.) P(A) = 0.32, P(B) = 0.36, P(A | B) = 0.24
*May 28, 2013 by Nora*

**Math/Statistics**

Suppose that A and B are events defined on a common sample space and that the following probabilities are known. Find P(A or B). (Give your answer correct to two decimal places.) P(A) = 0.32, P(B) = 0.36, P(A | B) = 0.24
*May 29, 2013 by Nora*

**math**

In a game, a player tosses a coin 4 times. If the player gets 3 or 4 heads, he/she wins. What is the theoretical probability of winning this game? I just need to know the outcomes. I don't know how to get them. Please and Thank you. Coin 1: 50% Heads Coin 2: 50% Heads Coin 3: ...
*May 30, 2007 by Angela*

**math**

if 20%of the people in school use the emergency room at the hospital in one year. find the probabilities for a sample of 8 people
*December 3, 2012 by Anonymous*

**math**

One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
*November 17, 2012 by Katarzyna*

**math**

For each value of z*, find the cumulative probability P(Z< or equal to z*). (Round all answers to four decimal places.) z*=0 z*=0.3 z*=-0.3 z*=1.84 z*=-2.38 z*=2.78 z*=1.67 you may need to use the table for standard normal probabilities
*October 17, 2010 by Kaylynn*

**probabilities**

z < .05=
*August 4, 2010 by Felicia*

**MATH**

Consider a population with and . (A) Calculate the z-score for from a sample of size 13. (B) Could this z-score be used in calculating probabilities using Table 3 in Appendix B of the text? Why or why not?
*December 4, 2011 by deandra*

**Math**

Here's a really tough question on Probabilities which I found on SnapQuiz! snapquiz.sg/viewQuestion.html?id=277 Is anyone able to explain the answer better?
*April 4, 2014 by Geoffrey*

**math**

a single die isrolled, find the probabilities of: a) P( an odd number greater than 1) b) P(number less than 5) c) P(the number 3 or 7)
*October 23, 2008 by joey*

**MATH!!**

Andy, Barbara and Chrisy play a game. Their probabilities of winning are 1/2, 1/3, and 1/6 respectively. What is the probability that each wins exatly one of the first three games played? Express your answer as a common fraction.
*April 2, 2013 by shaun*

**math**

hi i did this problem and i just want to know if its right. 3 coins are flipped , find the following probabilities: a) P(2 heads) b) P( at most 2 heads) c) P(no heads) i got a) 1/4 b) .75 c) 5/8
*November 1, 2008 by helpme*

**Alegbra help**

Find the requested probabilities. P(B) if P(B)=1/5
*September 9, 2011 by Anonymous*

**probability**

Let Y=X2. Calculate the following probabilities: P(Y=0)= P(Y=1)= P(Y=2)=
*February 27, 2014 by lin*

**math**

For the next eight problems, use the following scenario to find the probabilities: Jane has 4 quarters, 5 dimes, 6 nickels, and 2 pennies in her change purse. Two coins are drawn at random and the first coin IS NOT REPLACED.
*June 7, 2014 by corina*

**math**

sorry im real bad at probability. a single die is rolled. find the probabilities: a) P(odd numbers greater than 1) b) P(number less than 5) c) P(the number 3 or 7) i got a) 1/3 b) 1/2 c) 1/6 is that right please help.
*November 1, 2008 by helpme*

**Math**

Let X be the number of successes in five independent trials of a binomial experiment in which the probability of success is p = 3/5. Find the following probabilities. (Round your answers to four decimal places.) (a) P(X = 4) (b) P(2 ≤ X ≤ 4)
*January 27, 2013 by Bersy*

**probabilities**

What is the probability of obtaining tails or a five
*June 5, 2013 by Anonymous*

**math: probabilities**

Three regular six-sided dice are tossed in succession. What is the probability that all three outcomes are different? Choose from the following Answers: 5/9 25/36 2/3 1/192 How do I even begin with this problem?
*June 2, 2010 by M.A.*

**statistics**

How can the concept of probabilities be used in the nursing profession?
*June 1, 2010 by cortez*

**Statistics**

Normal probabilities. 11% of all observations are less than z
*September 24, 2011 by Mariana*

**statistics**

Identify why this assigbment if probabilities cannot be legitimite: P(A)=0.4, P(B)=0.3, P(AandB)= 0.5
*November 5, 2011 by yvonne*

**Math**

I have a work sheet on probabilities. IMPOSSIBLE (0) UNLIKELY (1/4) EQUALLY LIKELY (1/2) LIKELY (3/4) CERTAIN (1) I have to write at least two things under each listed, and I don't know how to do this
*October 12, 2010 by Aliyah*

**math**

Break a stick of length 1 at a uniform location and then choose either of the two parts with equal probabilities. If X denotes the length of the part you choose, compute E[X] and var(X).
*May 3, 2013 by hsuan*

**statistics**

11. All probabilities can be expressed as decimal values ranging from 0 to 1.00.
*October 12, 2014 by Anonymous*

**math 157**

Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities corresponding to the 14 possible values of x are summarized in the given table. Answer the question using the table.
*April 7, 2010 by Anonymous*

**math**

The number of accidents that occur at the intersection of Pine and Linden streets between 3 pm. and 6 pm. on Friday afternoons is 0,1,2, or 3, with probabilities of 0.84, 0.13. 0.02, and 0.01. What is the expected value for the random variable given the number of accidents?
*September 11, 2010 by Sarah*

**Math**

In the question I am working on, there are three jars filled with balls, and a die. Depending on the number that comes up from the die determines which jar a ball is drawn from. I created a tree and have all my individual probabilities. The question asks the probability of a ...
*October 13, 2011 by Zorniac*

**Math-probability**

Am I right? Did I write the solution the right way or do I need to put 50% or 50%? consider the experiments involving rolling a single die once. Give the probabilities of the event described. What is P (even or prime)? Would my answer be P(e)=3/6 or P(p) = 3/6
*April 27, 2010 by bwb*

**statitics**

Evaluate these binomial probabilities a. C82 (.2)2 (.8)6 b. C81 (.2)1 (.8)7 c. C80 (.2)0 (.8)8 d. P(X ≤ 1), when n = 8, p = 0.2
*October 17, 2010 by Anonymous*

**Probability **

Let A and B be events in a sample space S such that P(A) = 0.6, P(B) = 0.4, and P(A B) = 0.27. Find the probabilities below P(A|B)
*February 28, 2011 by Anonymous*

**ALGEBRA**

Find the requested probabilities. $$ P(\overline{A}) \ \text{if} \ P(A) = {\color{red}0.9} $$ P(A) =
*June 3, 2012 by Urgen please help*

**Math Statistics**

A bag contains 13 marbles; 3 blue, 2 green and 8 red. Without replacement find the following probabilities. a) P(both have the same color) b) P(different colors) c) P(G2|R1) d) P(G2 or R2) e) P(no red marbles) f) P(G2 and B2)
*March 2, 2012 by Nichole *

**Math**

The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m and 6p.m on Friday afternoons is 0,1,2,or 3 with probabilities of 0.84, 0.13, 0.02 and 0.01, respectively. What is the expected value for the random variable given the number of ...
*August 14, 2009 by B.B*

**math**

The lottery payoff in a letter game at a church social is determined by the single letter the winner holds. There are four letters, A, B, C, and D. The probabilities that each will be drawn are 1/2, 2/10, 4/10 and 3/10 respectively. The payoffs are $2 for an A, $4 for a B, $8 ...
*August 19, 2010 by Anonymous*

**posibility**

One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
*November 16, 2012 by Allen*

**Statistics**

5.22) A survey of employees at a large company found the following relative frequencies for the one-way distances they had to travel to arrive at work: Number of Miles (One-way) A B C D E F 5 6-10 11-15 16-20 21-30 31 Relative Frequency 0.38 0.25 0.16 0.09 0.07 0.05 a. ...
*July 20, 2009 by Yamil*

**statistics**

Which of the following numbers could not possibly be probabilities? justify your answer a)0.124 b)1 c)-0.1142 d)0 e)2/7 f)6/5 g)2.8
*February 5, 2008 by mary*

**Probabilities**

There are 10 contestants in a scrabble tournament. The number of ways in which the 3 finalists can be chosen is closest to?
*May 1, 2009 by Andrey L*

**statistics**

if 20% of the people in a community use the library in one year, find these probabilities
*August 8, 2011 by krys*

**business statistics**

Assume that X is a binomial random variable with n = 5 and p = 0.35. Calculate the following probabilities?
*November 14, 2012 by Alicia*

**Statistics**

True or False All probabilities can be expressed as decimal values ranging from 0 to 1.00.
*December 5, 2013 by Lyndyc*

**Determining Probabilities**

If a spinner has 10 equal-sized sections, which of the following will be false? P(1) = 10% P(not 1) = 10% P(2) = 10% P(not odd) = 50%
*February 18, 2014 by Jamar*

**math - probability**

Imagine a LONG bike with a total of 4 wheels - 2 in the front and 2 in the back. For the bike to work at all, at least 1 front wheel and 1 back wheel must be operational. All 4 tires are the same and each, individually, has probability 'p' of failing. What is the probability ...
*November 3, 2006 by andrew*

**MATH**

Three coins are flipped. Find the probabilities a. p(two heads)= b. p(at most two heads)= c. p(no heads)=
*November 2, 2008 by Marie*

**math**

The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value ...
*August 11, 2009 by Anonymous*

**Math**

The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.p and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value for...
*March 30, 2010 by Iris*

**MATH**

The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value ...
*April 1, 2010 by Tyga*

**Math**

The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3,with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value for...
*May 18, 2010 by Felicia*

**MATH Prob.**

The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value ...
*August 12, 2009 by Twg*

**math/graphing**

The number of accidents that occur at the intersection of Pine and Linden streets between 3 p.m. and 6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities of 0.84, 0.13, 0.02, and 0.01, respectively. Graph this probability distribution. What is the expected value ...
*October 22, 2009 by jason*

**Statistics**

A loaded die is tossed. Which of the following assignments could be made for the probabilities of each simple outcome. P(1) = .2 P(2) = .2 P(3) = .2 P(4) = .1 P(5) = .1 P(6) = .1 P(1) = .2 P(2) = .3 P(3) = .1 P(4) = .1 P(5) = .1 P(6) = .0 P(1) = .1 P(2) = .1 P(3) = .1 P(4) = ....
*November 24, 2011 by Brea*

**statistics**

Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). P(z -1.0) P(z -1.0) P(z -1.5) P(z -2.5) P(-3 < z 0)
*April 5, 2014 by Vanessa*

**statistics**

Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). P(z -1.0) P(z -1.0) P(z -1.5) P(z -2.5) P(-3 < z 0)
*April 6, 2014 by Vanessa*

**statistics**

Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). P(z -1.0) P(z -1.0) P(z -1.5) P(z -2.5) P(-3 < z 0)
*April 7, 2014 by vanessa*

**statistics**

3coins are tossed calculate the followin probabilities p(3heads) p(2heads and 1 tail) p(3 tails)
*April 20, 2014 by shumaila.imtiaz*

**math**

3 coins are flipped, find the probabilities of: a) P(two heads) b) P(at most two heads) c) P(no heads)
*October 23, 2008 by joey*

**posibility **

One problem encountered by developers of the space shuttle program is air pollution in the area surronding the launch site. Acertain direction from the launch site is considered critical in terms of hydrogen chloride pollution from the exhaust cloud. It has been determined ...
*November 17, 2012 by Katarzyna*

**Physics**

Can someone explain why electrons cannot exist in orbitals and why we need to describe their location in terms of probabilities.
*June 6, 2013 by Anonymous*

**Math**

Referring to the experiment of rolling two fair dice, let A be the event that the total is less than eight and let B be the event that the total is even. Draw a Venn diagram corresponding to this experiment and events A & B (using probabilities). 1
*February 14, 2013 by Leslie*

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