5,385 Answered Questions for the topic probability

Probability

12/17/20

Probability Question
A big box contains 14 pairs of shoes. If 9 shoes are randomly selected from the box, find the probability that there will be EXACTLY two complete pairs.
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Probability

12/16/20

I have a doubt in this question.
It is well known to the Public Health Service that Harry’s Restaurant givesonly casual attention to matters of cleanliness; consequently, the PublicHealth Service periodically closes the restaurant... more
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Probability Math

12/16/20

Is it easier to flip three coins and get exactly two heads or is it easier to flip four coins and get exactly two heads? Explain
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Probability

12/16/20

Help Please!!! .
A bag contains 9 marbles: 3 are green, 2 are red, and 4 are blue. Linda chooses a marble at random, and without putting it back, chooses another one at random. What is the probability that both... more
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Probability

12/16/20

what is probability ?
A football player has 20 footall kits uniform in his closet suppose 12 of those kits are red and the other are blue he gets dressed in the dark so he just grabs a kit and is on he plays football... more
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Probability

12/16/20

Markov Question
An auto insurance company classifies its customers in these categories poor, satisfactory, and preferred. Each year 15% of those in the poor category are moved to satisfactory and 5% of those in... more
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Probability

12/14/20

Probability of joint pdf’s
What’s the probability of P(X•Y<1) Given the pdf’s fY(y)=3/8•y2 for 0<y<2fX(x)=3/8•x2 for 0<x<2its supposed to be around 0.08 but I just can’t find the right method
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Probability

12/14/20

Assuming that the two machines starts at the same time, what is the probability that machine A manufactures the first product?
A company has two types of machines (A and B) to manufacture the same exact product. The manufacturing time of each product is independent of the others and can be modeled as an exponential random... more
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Probability Statistics Finite Math

12/14/20

What do you think the probability vector is after 20 transitions of P?
Consider the following Markov chain 0 1/2 1/2P=3/10 7/10 0 1/2 0 1/2Probability Vector: W [ 3/11, 5/11, 3/11]What do you think the probability vector... more
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Probability

12/13/20

Probability of a Proportion
Suppose that 78% of all dialysis patients will survive for at least 5 years.In a simple random sample of 100 new dialysis patients, what is the probability that the proportion surviving for at... more
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Probability

12/13/20

Probability math
a container contains 7 yellow and 3 green balls. You draw  three balls at random. On each draw, if the three balls is yellow you set it  aside and if the ball is green you put it back in the... more
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Probability Math Statistics

12/12/20

What is the inverse probability that the total of the roll of two six-sided dice is 10?
What is the inverse probability that the total of the roll of two six-sided dice is 10?
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Probability

12/12/20

Probability Question
If 10 people consisting of 5 married couples, are randomly arranged in a row, find the probability that no person is next to their spouse. Give the numerical value of this probability.
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Probability

12/11/20

A big box contains 14 pairs of shoes. If 9 shoes are randomly selected from the box, find the probability that there will be EXACTLY two complete pairs.
Give the numerical value of this probability.
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Probability Math Statistics

12/11/20

Find P ( -1.2 < Z < -0.2 )
Find P ( -1.2 < Z < -0.2 )
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Probability Math Statistics

12/11/20

A nutrition store in mall is selling....
A nutrition store in the mall is selling “Memory Booster,” which is a concoction of herbs and minerals that is intended to improve memory performance, but there is no good reason to think it... more
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Probability

12/10/20

Combinations and Permutations
A group of 15 activists (7 Democrats, 6 Republicans and 2 Independents) want to form a committee so that they can change the world. The committee is to have 6 members on it, with 2 representatives... more
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Probability

12/09/20

probability problem
there is a 20% chance the total employees will increase by 300, 70% chance will increase by 400 employees and 10% chance will derease by 500 employees, determine the expected gain or loss of... more
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Probability

12/09/20

Prove P(A/B and C) = P(A/C) if A and B are independent
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Probability

12/08/20

Probability Questions
In a high school mathematics exam, 72% of the students score grade B and below while the remaining 28% score A. Among those students who score grade A, 23% are female while 53% of the grade B and... more
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Probability Algebra 2 Statistics

12/08/20

probability....
1) consider the probability statement regarding events A and B below. P(A or B) =0.3 ; P(A and B) = 0.2 ; and P(A|B) = 0.8what is P(B)a) 0.12) 0.253) 0.3754) 0.6672) A suburban... more
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12/07/20

PLZ HELPPP PROBABILITY

data for the students enrolled in a local high school are shown in the Venn diagram below.alg 2 - 210sophomores - 320both - 85 if a student from the Hight school is selected at random. what is the... more
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Probability Algebra 2 Trigonometry

12/07/20

probability HELP URGENT

1) the table below shows the percentage of animals in a shelter over the span of a month. It breaks them into dog and cats and vaccinated and unvaccinated.If an animal was chosen at random. What is... more
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Probability

12/07/20

Probability question
Two hockey players, Warren and Andrew, each independently take a penalty shot. The odds of Warren scoring are 8:3 in favour. The odds of Andrew scoring are 2:5 against. Marks will be assigned for... more
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Probability

12/07/20

Probability question
Bag A contains a red and blue marble. Bag B contains a: red, blue and yellow marble. One marble is taken from each bag. The probability to the nearest tenth, that the marbles are both the same... more
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