5,385 Answered Questions for the topic probability

Probability Math

10/30/20

What is the probability of getting seven duplicates between two bingo cards?
Assume two standard 5x5 bingo cards. On both, there are 25 total squares, and the middle square is a bonus square, and will not have a number in it. All 24 other squares will have a number on it as... more
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Probability Statistics

10/29/20

Conditional Probability

Box 1 contains 4 red chips and 1 white chip. Box 2 contains 3 red, 1 black and 6 white chips. The experiment consists of randomly picking a box, then randomly picking a chip from it. Find the... more
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Probability

10/29/20

Probability Query
Let A and B be two events defined on a sample space S such that P(A)=x, P(B)=y, and P(A∪B)=z. Find the following in term of x, y, and z.𝑃(𝐴' ∩ 𝐵)
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Probability

10/29/20

Probability Question
A fair coin is tossed 3 times. Events A and B are defined by A: The 2nd toss is a tail; B: The 1st and last tosses are the same. Are A and B independent? Why and how?
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Probability Statistics

10/29/20

Probability Question

Five cards are picked at random from a standard deck of 52 cards. For each of the following events, determine the number of sample points in the event. Leave your answer in symbolic form of... more
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Probability

10/29/20

How much is 1/3 of people
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Probability Math Statistics

10/29/20

How do we decide if the correlation coefficient is close enough to ±1 to declare that there is correlation?
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Probability

10/28/20

Probability Question

Box #1 contains 4 red chips and 1 white chip. Box #2 contains 3 red, 1 black and 6 white chips. Theexperiment consists of randomly picking a box, then randomly picking a chip from it. Find... more
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10/28/20

Probabilty Question: Color of the Marble

Mr.W puts two blue marbles and one green marble into his pocket. Then he randomly takes out one. After recording the color of the marble, he puts the marble back. He repeats this 6 times. a.What is... more
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Probability Statistics

10/28/20

How do I find the probability ?
"Suppose 4-year-olds in a certain country average 3 hours a day unsupervised and that most of the unsupervised children live in rural areas, considered safe. Suppose that the standard deviation... more
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Probability

10/27/20

Suppose 60% of students eat proper nutritious meals daily, and 20% exercise regularly. Also, there is a probability of 25% that a student does both.
Suppose 60% of students eat proper nutritious meals daily, and 20% exercise regularly. Also, there is a probability of 25% that a student does both. Find the probability that student eats proper... more
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Probability

10/26/20

A single die is rolled 7 times. What is the probability that a six is rolled exactly once, if it is known that at least one six is rolled?
Can you show the steps to help me understand?
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Probability

10/26/20

In a sample of 1446 U.S. registered voters, 217 said that JFK was the best
president since WWII. Two registered voters are selected at random without replacement.(a) Find the probability that both registered voters say that JFK was the best.(b) Find the probability that... more
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Probability

10/25/20

A five digit code using numbers from 1 to 6 is used for remote access to voicemail. Determine the probability that a randomly selected code has the same first 2 digits.
A five digit code using numbers from 1 to 6 is used for remote access to voicemail. Determine the probability that a randomly selected code has the same first 2 digits.I am not sure the answer may... more
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Probability Statistics

10/24/20

A particular fruit's weights are normally distributed, with a mean of 756 gr. and a st dev of 14 gr The heaviest 20% of fruits weigh more than how many grams? Give your answer to the nearest gram.
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Probability

10/24/20

Find the probability

A bag contains 10 balls, of which 7 are green and 3 are white. A ball is picked atrandom from the bag and its color is noted. The ball is not replaced and a second ballis then picked out. Find the... more
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Probability Statistics

10/23/20

How do I find the probability for this question?
Hi, if someone could help me solve this problem that would be great, thank you"A distribution is given as X ~ U(0, 12)."Find P(x > 9).  (Enter an exact number as an integer, fraction, or decimal.)
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Probability Math Statistics

10/23/20

What value of p makes this an evenly matched game of one-on-one, so that both players have an equal chance of winning before the coin is flipped?
Now that LeBron James and Anthony Davis have restored the Los Angeles Lakers to glory with their recent victory in the NBA Finals, suppose they decide to play a game of sudden-death, one-on-one... more
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Probability

10/21/20

Anybody know the answer to this?
100 people play a lottery, and each has a probability 0.02 of winning the jackpot. Each person spends 1 dollar to buy a ticket, so the lottery owners receive a total of 100 dollars. From this pool... more
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Probability

10/21/20

A softball player bats in a game. The at bat can result in an out, getting on base, or a home run. Find the number of possible outcomes for the sample space.
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Probability

10/21/20

What is the experimental probability that the next client to get a haircut Marshall’s will have blond hair?
Brown hair 7 black hair 7 blond hair 2
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10/20/20

Algebra question
Let f(x) = λ2xe-λx , x>0 , be the the г (2, λ) density function and let F(x) be its cdf. Solve the following interal equation using Laplace transforms:m(x) = F (x) + integration (upper =x ,... more
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10/20/20

How do I get the mean/average with the given standard deviation 7ml and percentile which is 10%?
In the word promblem, it stated that a machine was set so that 10% of a 370ml can can contain less that 356ml.I'm not good with word problems and I'm confused which is which.
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Probability Statistics

10/19/20

How do I find the expected value for this game?
Hi, I'm having a bit of trouble trying to figure out the expected value for this game, so if you could help that would be really great and helpful. thanks so muchA game involves selecting a card... more
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Probability Math Statistics

10/18/20

Suppose there are N candidates instead of three. What is the probability of a runoff?
On Nov. 3, the residents of X City will elect a mayor from among three candidates. The winner will be the candidate who receives an outright majority (i.e., more than 50 percent of the vote). But... more
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