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April 25, 2014

Search: Probability

Number of results: 6,728

Math: Geometry
If 0 < y < 1 and 0 < x < 1, find the probability that y < x. Begin by sketching te graph, and then use the area method to find the probability. Please help me. I do not understand. Thank you in advance!
Monday, April 23, 2012 at 9:01pm by Rose

Math: Geometry
If 0 < y < 1 and 0 < x < 1, find the probability that y < x. Begin by sketching te graph, and then use the area method to find the probability. Please help me. I do not understand. Thank you in advance!
Tuesday, April 24, 2012 at 12:29am by Rose

Math Probability
Using a standard deck of 52 cards find each probability. 1.)King, queen, or black card 2.)Spade or hearts card
Thursday, March 14, 2013 at 7:58pm by B1nary

probability
Given that there were 4 Heads in the first 7 tosses, find the probability that the 2nd Heads occurred at the 4th toss. Give a numerical answer.
Thursday, February 27, 2014 at 5:48pm by jon

Math : Probability and Standard Deviation
This is a word problem. "We know that for certain workers the mean wage is $5/hr with a standard deviation of $.50. We need to find out if a worker is chosen at random what is the probability that the workers' wage is between $4.50 and $5.50? Assume a normal distribution of ...
Tuesday, October 23, 2007 at 4:32pm by Tiffany Johnson

math
Suppose an event has a probability of p. What can you say about the value of p? What is the probability that the event will not occur? Explain
Tuesday, August 26, 2008 at 10:07pm by Jope

math
probability... two dice are tossed.... and their sum is recorded ..find probability p ( sum is between 2 and 9)
Wednesday, August 25, 2010 at 11:42pm by tana

Probability
A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?
Tuesday, October 12, 2010 at 1:12pm by vika

PROBABILITY
A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?
Tuesday, October 19, 2010 at 4:27pm by JHONY

Probability
A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?
Tuesday, October 19, 2010 at 4:31pm by JHONY

Probability
A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?
Tuesday, October 19, 2010 at 4:31pm by JHONY

PROBABILITY
A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?
Tuesday, October 19, 2010 at 5:10pm by JHONY

Probability
A pair of fair dice is tossed 3 times. Find the probability a seven appears 3 times.
Sunday, February 20, 2011 at 11:11pm by Traci

Probability
In a raffle there are four winning tickets from 12, What is the probability from six tickets there are two winners? Thank you in advance.
Saturday, May 12, 2012 at 2:59pm by William

probability
two dice are tossed. find the probability that the sum is odd given that the sum is 5 or less
Tuesday, June 12, 2012 at 1:57am by Anonymous

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

probability in math
can anyone help me with a probability question?
Monday, October 6, 2008 at 11:27pm by puzzled

algebra I
If you toss a coin, the probability of gettig heads is 1/2. If you toss a coin 2 times. the probability of getting heds each time is 1/2*1/2 or (1/2)^2. -Write an expression to represent the probability of tossing a coin 'n' times and getting 'n' heads. -Express your answer to...
Thursday, February 7, 2008 at 5:43pm by Joanne

Probability
Clara Nett is quite good and figures that her probability of playing any one note right is 99%. The solo has 60 notes. a. What is her probability of each of the following? 1. Getting every note right. My answer: 0.547 I am stuck on problems 2-5 because when I set up the nCx I ...
Friday, February 28, 2014 at 7:59pm by Anonymous

probability
for a small regional airline, the number of claims for missing luggage averages 70 per week. a. what is the probability that on a given day, there are fewer than 3 claims made against the airline? b. what is the probability that there are more than 3 claims against the ...
Tuesday, January 22, 2013 at 10:10pm by Jen

Probability 3
When confronted with an in-flight medical emergency, pilots and crew can consult staff physicians at MedAire, an emergency facility in Tempe, Arizona. If MedAire is called, there is a 4.8 percent chance that the flight will be diverted for an immediate landing. a. Expected ...
Monday, November 2, 2009 at 9:42pm by Janice

statistics
Needing some help to clarify this problem and help finding the right answer. _b___ 2. Which of the following accurately describes the critical region? a. outcomes with a very low probability if the null hypothesis is true b. outcomes with a high probability if the null ...
Sunday, December 29, 2013 at 10:58am by Lyn

probability
A pizza shop offers nine toppings. No topping is used more than once. What is the probability that the toppings are pepperoni, onions, olives, and mushrooms?
Thursday, October 8, 2009 at 7:51am by Sharon

Math
Assume that the probability is 1/2 that a baby born is a boy. If a couple has two children, what is the probability that both are girls? Assume that births are independent of each other.
Sunday, February 21, 2010 at 11:36am by Lyndse

math probability
there are 3 nickles 2 dimes and 5 quarters in a purse. the three coins are selected in succession at random. find the probability of selecting2 nickles , then a quarter.
Thursday, March 31, 2011 at 11:50pm by carly

probability
use 3 colors; one color has half probability, every segment is next to a different color; in a circle divided in 8 equal segments
Thursday, February 9, 2012 at 12:46am by dana

statistics
Find the mean of the given probability distribution. The number of golf balls ordered by customers of a pro shop has the following probability distribution.
Sunday, February 12, 2012 at 1:08pm by mary

math
A pair of dice are rolled find the following, a) the probability of doubles, b) the odds in favor of a sum greater than 2, c) the probability of sum that is even and less than 5
Monday, November 26, 2012 at 8:51pm by Katarzyna

posibility
A pair of dice are rolled find the following, a) the probability of doubles, b) the odds in favor of a sum greater than 2, c) the probability of sum that is even and less than 5
Monday, November 26, 2012 at 9:33pm by Katarzyna

math
A pair of dice are rolled find the following, a) the probability of doubles, b) the odds in favor of a sum greater than 2, c) the probability of sum that is even and less than 5
Monday, November 26, 2012 at 10:03pm by Andrew

math
A pair of dice are rolled find the following, a) the probability of doubles, b) the odds in favor of a sum greater than 2, c) the probability of sum that is even and less than 5
Monday, November 26, 2012 at 11:43pm by Andrzej

5th grade math
A coin is tossed twice. What is the probability of tossing 2 tails? What is the probability of tossing 1 tail & 1 head? can you please show me how to do this problem?
Wednesday, January 8, 2014 at 7:50pm by stephon

maths
3 and 5 of spade, king and queen of club , 7 and 9 of diamond and ace of heart are removed (i) find the probability its a red card (ii) find the probability its neither king nor queen (iii) find the probability its a face card (iv) That its a black coloured card (v) that its a...
Sunday, February 16, 2014 at 9:27am by tuhituhi

Statistics
On a very short quiz, there is one multiple choice question with 5 possible choices (a, b, c, d, e) and one true or false question. Assume you are taking the quiz but do not have any idea what the correct answer is to either question. You mark an answer to each question anyway...
Friday, July 8, 2011 at 2:47pm by Cassie

stats
Between 11 P.M. and midnight on Thursday night, Mystery Pizza gets an average of 5.7 telephone orders per hour. a) Find the probability that at least 32 minutes will elapse before the next telephone order. b) Find the probability that less than 17 minutes will elapse. c) Find ...
Sunday, October 31, 2010 at 2:13pm by anonymous

stats
if you randomly answer a t/f test and want to figure the possibililty of gettng at least an 80......how do you start and then once you have done this, what if you want to try it 4 more times? HELP Let N be the number of questions. You are asking for the probability of getting ...
Thursday, July 5, 2007 at 5:17pm by holly

Data Management
Two cards are drawn from a standard 52 card deck. a) what is the probability that both cards drawn are black? b) what is the probability that one card is red and the other is black? c) what is the probability that a two face cards are drawn? d)what is the probability that two ...
Wednesday, March 3, 2010 at 6:56pm by Jud

Math-Probability
Data collected on volcanic eruptions give a mean time between eruptions of 29 months. Assume these eruptions occur as a Poisson process in time, find the: (a) Expected number of eruptions during the five-year period beginning from the time you have read this question. (b) ...
Sunday, January 22, 2012 at 4:03am by sand

Statistics-Probability
Data collected on volcanic eruptions give a mean time between eruptions of 29 months. Assume these eruptions occur as a Poisson process in time, find the: (a) Expected number of eruptions during the five-year period beginning from the time you have read this question. (b) ...
Sunday, January 22, 2012 at 11:57pm by sand

Statistics-Probability
Data collected on volcanic eruptions give a mean time between eruptions of 29 months. Assume these eruptions occur as a Poisson process in time, find the: (a) Expected number of eruptions during the five-year period beginning from the time you have read this question. (b) ...
Tuesday, January 24, 2012 at 1:16am by sand

statistics
According to Advertising Age, the average base salary for women working as copywriters is $66,000. Assume that the salaries are normally distributed and that the standard deviation is $7,500. a. What is the probability of a woman receiving a salary between $60,000 and $75,000...
Tuesday, June 25, 2013 at 12:31pm by petrit

probability
1) A secret admirer has been leaving you roses at the rate of 4/day. What is the probability that, on a given day, you will receive (a) exactly one rose (b) at least one rose? 2) Every student has a 1 in 9 chance of winning a certain prestigious scholarship. What is the ...
Wednesday, May 4, 2011 at 7:52am by Anonymous

statistics
Suppose that in a particular year the probability of a college student being part-time was 0.43. For part-time students, the probability of being male was 0.33. For full-time students, the probability of being male was 0.42. Find the probability of a college student being male.
Thursday, February 10, 2011 at 7:19pm by Amiee

Intro Statistics
Please let me know if I'm on the right track. Probability of Computer Failures. A PC World survey of 4000 personal computer owners showed that 992 of them broke down during the first two years. (The computers broke down, not the owners.) In choosing among several computer ...
Sunday, October 8, 2006 at 3:09pm by Mary

bus stats
A manufacturing company has 5 identical machines that produce nails. The probability that a machine will break down on any given day is .1. Define a random variable X to be the number of machines that will break down in a day. a. what is the appropriate probability ...
Friday, March 25, 2011 at 3:04pm by Mich Mich

Math Urgent
17. A box contains 95 pink rubber bands and 90 brown rubber bands. You select a rubber band at random from the box. Find each probability. Write the probability as a fraction in simplest form. a. Find the theoretical probability of selecting a pink rubber band. b. Find the ...
Wednesday, April 17, 2013 at 12:55pm by Anonymous

Probability
Just wanted to confirm that this is right since I really don't know cards well is the probability of drawing a queen, given that it is a face card from a standard 52 card deck 1/3?
Thursday, December 18, 2008 at 5:57pm by Juliette

Math
Assume the probability is 1/2 that a child born is a girl. If a family has three children, what is the probability that they have a) exactly one girl b) at most two boys?
Monday, January 10, 2011 at 3:22pm by Nicole

7th grade math
If the theoretical probability of rolling a 3 is 1/6, what is the experimental probability of rolling a 3 if the cube is rolled 300 times? Need a formula to show answer.
Tuesday, March 29, 2011 at 8:31pm by hunter

PROBABILITY MATH
a spinner has regions numbered through 1-21 what is the probability that the spinner will stop on an even number or a multiple of 3.. I am confused. I keep coming up with 17/21 but the real answer is 2/3 how how how ?
Wednesday, November 2, 2011 at 1:25pm by HM

Probability
The spinner has 6 sections 2 of which are 2. The spinner is now spun until it stops on a section numbered 2. The probability that this happens on the nth spin is 16/243. Find the value of n.
Wednesday, May 8, 2013 at 2:19pm by Hajar

probability of an event
How do you predict the probability of an event using trials or simulations? Example please? Thanks. :)
Tuesday, March 18, 2008 at 2:49pm by Jen

Probability problems
I need help with two word problems that have to do with probability. Can someone please help me?
Wednesday, May 21, 2008 at 1:55am by Gayla

Probability
A card is selected from an ordinary deck of 52 cards. The probability that the card is a queen or a spade is what?
Saturday, November 14, 2009 at 4:55pm by Anna

Probability
Two fair dice are rolled together. The probability that the sum rolled is greater that 8 is?
Sunday, November 15, 2009 at 12:12am by Anna

Probability
The probability of drawing a red Jack or red Queen from a standard deck of cards is...? 1/13, 12/13, 4/13, or 9/13?
Friday, January 1, 2010 at 1:26pm by Anna

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

probability/binomial
i'm having trouble with probability and the binomial thm, could i get a good website with problems
Saturday, March 24, 2012 at 1:17pm by joe

pre algebra answer check
The probability that you will win a contest is 76%. What is the probability that you will lose the contest? 24%
Wednesday, May 30, 2012 at 2:54pm by amy

probability
a spinner has 5 sections and is spun 40 times. it lands on 2 six times. What is probability of spinning a 2?
Monday, May 20, 2013 at 6:36pm by Sam

Statistics
Put in Binomial Probability Formula? probability ( 2 of 22 are lost) = C(22,2) (1/200)^2 (199/200)^20
Sunday, March 9, 2014 at 6:59am by Brenda

Probability NEED HELP
1. When two fair dice are tossed, what is the probability of a sum of 4 or a sum of 8? 2. When two fair dice are tossed, what is the probability of doubles or a sum over 9? 3. Evaluate 1025! / 1022! Please help
Wednesday, May 11, 2011 at 9:16pm by Hannah

Math
Can somebody help me with the following probability question? There is none like it to refer to in my textbook and I am confused. Explain how you would determine the probability that a given household in your community is watching the 10:00m tv news on a Wednesday night?
Saturday, June 18, 2011 at 4:39pm by Michelle

maths
The probability that Katarina will correctly solve a given Brilliant math problem is 1/8. The probability that Layla will solve the same problem correctly is 1/12. The probability that they will give the same incorrect numerical result is 1/1001. Suppose Katarina and Layla ...
Monday, April 1, 2013 at 5:48am by rohit

prob and stat
Ramon has applied to both Princeton and Stanford. He thinks the probability that Princeton will admit him is 0.4, the probability that Stanford will admit him is 0.5, and the probability that both will admit him is 0.2.
Sunday, October 30, 2011 at 9:24am by ecey

Determining Probabilities
A spinner is divided into 4 sections of equal size labeled with the numbers 1, 2, 3, and 4. You spin it 3 times and get the following results: 1, 4, 3. Which of the following is true? The theoretical probability of getting a 1 is 25%. The experimental probability of getting a...
Tuesday, February 18, 2014 at 1:41pm by Jamar

Probability and Statistics
An oil prospector will drill a succession of holes in a given area to find a productive well. The probability that he is successful on a given trial is 0.2. a) What's the probability that that the third hole drilled is the first to yield a productive well? b) If the prospector...
Sunday, September 29, 2013 at 3:06am by Katy

12 math
there are 8 opposite sex married couples at a party. two people are chosen at random to win a door prize. A. what is the probability that the 2 people will be married to each other? B. what is the probability that the 2 people will be same sex? C. if 6 people are chosen whats ...
Wednesday, October 8, 2008 at 11:20am by Linda

statistics
A certain defect (D) is present in about 1 out of 1000 cars during production [P(D)=0.001], and a program of testing is to be carried out using a detection device which gives a positive reading with probability 0.99 for a defective car [P(+/D)=0.99] and with probability 0.05 ...
Friday, June 3, 2011 at 2:51pm by masaad

statistics
Expected relative frequency probability represents a calculated probability based on large numbers of trials. In an example of a deck of 52 cards, where you randomly pull cards from the deck and record what they are, you find that over 1000 random draws, you pull an ACE 76 ...
Saturday, July 28, 2012 at 12:24pm by carlos

Probability Math
Through a mix up on the production line, 5 defective light bulbs were shipped out with 32 good ones. If 4 are selected at random, what is the probability that at least 3 of them are defective?
Wednesday, May 2, 2012 at 7:16pm by Jack

Statistics
The probability that a radish seed will germinate is 0.6. Estimate the probability that of 130 randomly selected seeds, exactly 90 will germinate. Note: I keep getting the answer wrong.
Friday, July 20, 2012 at 5:47pm by Ann

probability
The digits 2, 3, 4, 7, and 8 are each used once in a random order to form a five-digit number. What is the probability that the resulting number is divisible by 4? Express your answer as a common fraction.
Thursday, November 15, 2012 at 10:29am by bob

does anyone know probability????
The digits 2, 3, 4, 7, and 8 are each used once in a random order to form a five-digit number. What is the probability that the resulting number is divisible by 4? Express your answer as a common fraction.
Friday, November 16, 2012 at 4:57pm by epicmathfailure

help!!!!! Probability!!!
A fair 6-sided die is rolled twice. The probability that the second roll is strictly less than the first roll can be written as a/b, where a and b are positive, coprime integers. What is the value of a+b?
Sunday, May 26, 2013 at 12:06pm by fweng

Probability
A contest entrant has a .00001 probability of winning $5,000.00. If this is only prize and the entry fee is $20.00, then what is the expected value? Regardless of what you pay for an entry "ticket" its expected value is in this case (probability of winning) x (prize money) = ...
Tuesday, December 12, 2006 at 12:42am by Sue

statistics/probability
The supply office for a large construction firm has three welding units of Brand A and three welding units that are not Brand A in stock. If a welding unit is requested, the probability is .7 that the request will be for Brand A. Find the probability that exactly one of the ...
Monday, January 14, 2013 at 5:14pm by George

probability
If 2 cards are drawn at random from a standard deck of cards with no replacement, find the probability that both cards are heart I had 13/52 multiplied by 12/51 to get an answer of 1/17 A bucket contains 4 red, 2 yellow, and 3 green balls. If one ball is taken at random what ...
Thursday, May 15, 2008 at 1:26pm by Jane

Finite
Bowl one contains 3 black and 2 white balls. Bowl two contains 4 black and 5 white balls. Experiment: A ball is randomly selected from bowl one, its color noted, and it is placed in bowl two. Then a ball is randomly selected from bowl two. a.) What is the probability that the ...
Monday, November 20, 2006 at 7:22pm by Aubrey

Statistics/Probability
3. On a given evening, two roommates, roommate A and roommate B, are arguing over who should control the television remote. Roommate A suggests a game of rock-paper-scissors to settle the dispute. It's the first time that the roommates have played each other in rock-paper-...
Sunday, July 7, 2013 at 12:15pm by y912f

problem stats
an instant lottery game gives you probability .02 of winning on any one play. Plays are indpendent of each other. If you play 5 times, what is the probability that you win at least once.
Monday, October 15, 2007 at 5:15pm by Kate

problem stats
an instant lottery game gives you probability .02 of winning on any one play. Plays are indpendent of each other. If you play 5 times, what is the probability that you win at least once.
Monday, October 15, 2007 at 8:29pm by Kate

math
A contractor is considering a sale that promises a profit of $ 26,000 with a probability of .7 or a loss (due to bad weather, strikes, and such) of $ 4000 with a probability of .3. What is the expected profit. Can someone help me with this.
Sunday, April 4, 2010 at 6:00pm by wayne

Math
{lease help :) A contractor is considering a sale that promises a profit of $20,000 with a probability of .7 or a loss due to bad weather, strikes and such of $3000 with a probability of .3, what is the expected profit?
Monday, June 21, 2010 at 12:55am by Sally

probability
a circular dartboard of tedious 1 foot is at a distance of 20 feet from you.you throw a dart at it and it hits the dart board at some point q.what is the probability that q is closer to the center of the circle than the periphery ?
Wednesday, November 17, 2010 at 2:49am by Prabhat Ghosh

Statistics
Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children. Find the probability of exactly eight in ten births.
Sunday, March 13, 2011 at 5:33pm by chalulu

statistics
Consider a binomial experiment with 20 trials and probability 0.45 on a single trial. Use the binomial distribution to find the probability of exactly 10 successes. Round your answer to the thousandths place
Thursday, July 28, 2011 at 3:43pm by Rosalyn

counting and probability
A fair, six-sided die is rolled eight times, to form an eight-digit number. What is the probability that the resulting number is a multiple of 8? Express your answer as a common fraction.
Thursday, November 15, 2012 at 10:30am by zamanofdoom

Probability please help!
The digits 2, 3, 4, 7, and 8 are each used once in a random order to form a five-digit number. What is the probability that the resulting number is divisible by 4? Express your answer as a common fraction.
Tuesday, November 20, 2012 at 8:02am by SuckatProb

Stats
I roll a pair of fair dice and compute the number of spots on the two sides facing up. Denote this total by X. The probability distribution of X is X Prob 2 1/36 3 2/36 4 3/36 5 4/36 6 5/36 7 6/36 8 5/36 9 4/36 10 3/36 11 2/36 12 1/36 The probability that X is an even number is
Tuesday, July 2, 2013 at 3:28pm by MT

math/probability
the odds in favor of an event are 10:1 find the probability that the event will occur.
Wednesday, April 22, 2009 at 3:07pm by yorkie

probability question
if the odds agaisnt you winning are 1 to 7,what would the probability that you would win?
Sunday, April 8, 2012 at 5:16pm by jazz hands

math
The probability of event A is 5/8. The probability of event B is 2/5. Explain why A and B cannot be mutually exclusive events.
Sunday, December 23, 2012 at 2:34pm by Rya

Help Math
P(A)=0.40 P(B)=0.25 The probability of both events occurring is 0.15. What is the probability of either event occurring? A. 0.15 B. 0.50 C. 0.65 D. 0.80 Is it D?
Sunday, December 30, 2012 at 7:50pm by Chrissy

statistics
The probability that a married man watches a certain television show is 0.4 and the probability that a married woman watches the show is 0.5. The probability that a man watches the show, given that his wife does, is 0.7. Find the probability that a) a married couple watches ...
Saturday, February 25, 2012 at 8:53am by Misael

Statistics
1. A human gene carries a certain disease from a mother to her child with a probability rate of 0.58. That is, there is a 58% chance that the child becomes infected with the disease. Suppose a female carrier of the gene has five children. Assume that the infections, or lack ...
Sunday, September 29, 2013 at 10:52pm by Lisa

Math
Hi can someone help assist me with my math problems dealing with probability If 80% of scheduled flights actually take place and cancellations are independent events, what is the probability that 3 separate flights will all take place? A) 0.51 B) 0.01 C) 0.64 D) 0.80 ...
Friday, April 2, 2010 at 12:33pm by Hannah

Finite Math (college)
EventProbability Too much enamel0.27 Too little enamel0.2 Uneven application0.35 No defects noted0.43 (1) What is the probability of a paint defect? (2) What is the probability of a paint defect which includes an improper amount of paint? (3) What is the probability of a paint...
Monday, September 17, 2012 at 10:10pm by Jarrod

Intro to Probability, please check my work.
A fair coin is flipped three times. You win $5 every time the outcome is heads. Let the random variable X represent the total number of dollars you win. (a) List the sample space. (b) Determine the probability function of X. ====================== Answer: a) 2^3= 8 ...
Sunday, February 17, 2008 at 3:35pm by Amelie

Probability
1. When two fair dice are tossed, what is the probability of a sum of 4 or a sum of 8? 2. When two fair dice are tossed, what is the probability of doubles or a sum over 9? 3. Evaluate 1025! / 1022! Please help
Wednesday, May 11, 2011 at 7:13pm by Hannah

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