5,341 Answered Questions for the topic probability

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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Probability Math

12/07/20

Proof of independence of random variables X and Y
Prove that random variables X and Y are independent if and only if FX,Y(x,y) = FX(x)FY(y)
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Probability

12/06/20

Bernoulli's theorem, probability
In an exam, candidates fail with a chance of p = 0.6, (and pass with a chance of q = 1 - p = 0.4).A total of 90 are taking the exam.We would like to estimate p based on Bernoulli's theorem.What is... more
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Probability Math Geometry Math Help

12/04/20

geometry probabllity
in contract negotiations between a local government agency and its workers, it is estimated that there is a 50% chance that an agreement will be reached on the salaries of its workers. it is... more
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Probability Math Statistics

12/04/20

Probability, queing problem
N ski slopes meet at the bottom of a valley, the lifts to the slopes are here in one place, there are waiting lines for the lifts.After how many laps are we expected to ski on the most difficult... more
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Probability

12/04/20

Fifteen people entered a cooking contest and the top 3 contestants win a cash prize. What is the percent chance any contestant wins a cash prize?
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Probability

12/03/20

A drug test is accurate 96% of the time. If the test is given to 1900 people who have not taken drugs, what is the probability that at least 78 will test positive? Probability =
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Probability

12/03/20

An urn contains 8 white and 3 red balls.if two ball are drawn at random, find the probability of both are white,both are red and one is of each colourr
An urn contains 8 white and 3 red balls.If two balls are drawn at random . Find the probability of both are white,both are red, and one is of each colour
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Probability Statistics

12/03/20

Suppose there are 8 green tags, 12 white tags and 4 red tags left to use as name tags at a conference...
Suppose there are 8 green tags, 12 white tags and 4 red tags left to use as name tags at a conference. If tags are given out randomly at the registration desk,a) what is the probability that the... more
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