5,381 Answered Questions for the topic probability

Probability

09/05/22

Suppose a jar contains 14 red marbles and 27 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same time: find the probability that both are red
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Probability

09/03/22

The spinners alongside are each spun once. Find the probability that the spins are the same, colour.
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Probability Math

09/03/22

Probability of a Sample population
A survey of 500 randomly selected customers based on their expenditure patterns was carried out and the data were found to be normally distributed with a mean of N50 and a standard... more
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Probability

09/02/22

The spinners alongside are each spun once.Find the probability that the spins are the same,colour.
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Probability

08/31/22

Probability add and multiply
A jar contains 10 red marbles numbered 1 to 10 and 12 blue marbles numbered 1 to 12. A marble is drawn at random from the jar. Find the probability of the given event, please show your answers as... more
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Probability

08/27/22

Probability work
An experiment consists of selecting a ball from a bag and spinning a coin. The bag contains 5 red balls and 7 blue balls. A ball is selected at random from the bag, it's colour is noted and then... more
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Probability Statistics

08/21/22

Probability Question
A baker put 500 raisins into dough, mixed well, and made 100 cookies. You take a random cookie. What is the probability of finding at least 4 raisins in it? (Hint: use Poisson approximation to the... more
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Probability Statistics

08/21/22

The number of cars washed in a certain car wash station is a Poisson random variable with a mean of 6 cars per hour
(a) What is the probability that next car arriving to this station will wait less than 45 minutes? (b) What is the probability that at least 1 cars will be washed in 30 minutes period?
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Probability Statistics

08/21/22

The number of customers arriving per hour at a certain automobile service facility is assumed to follow a Poisson distribution with λ = 7 .
(a) Compute the probability that more than 10 customers will arrive in a 3-hour period. (b) What is the mean number of arrivals during a 4-hour period?
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Probability Statistics

08/21/22

It is estimated that 80% of people in Cyprus take paracetamol for headache treatment. Out of 5 having headache, find the probability that exactly 2 will take paracetamol.
It is estimated that 80% of people in Cyprus take paracetamol for headache treatment. Out of 5 having headache, find the probability that exactly 2 will take paracetamol.
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Probability Statistics

08/21/22

One prominent physician claims that 70% of those with lung cancer are heavy smokers. If his assertion is correct, find the probability that out of 10 such patients recently admitted to a hospital
(a) more than half are heavy smokers (b) exactly 4 are heavy smokers (c) less than 2 are non- smokers
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Probability Statistics

08/21/22

If the probability of a defective bolt is 0.1, find

a)the meanb)the standard deviation for the distribution of defective bolts in a total of 400.
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Probability Statistics

08/20/22

Probability of A give B
This is a probability question. What is the probability of A and B if the Probability of A|B = .6What is the Probability of A intersect B?
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Probability Math Statistics

08/14/22

Assume that the events A and B satisfy P(A)=P(B)=P(B/A')=1/3 where A' is complement of A. What is P(A'UB)?
Assume that the events A and B satisfy P(A)=P(B)=P(B/A')=1/3 where A' is complement of A. What is P(A'UB)?
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Probability Math Algebra 1 Algebra 2

08/14/22

Assume that the events A and B satisfy P(A)=P(B)=P(B/A')=1/3 where A' is complement of A. What is P(A'UB)?
Assume that the events A and B satisfy P(A)=P(B)=P(B/A')=1/3 where A' is complement of A. What is P(A'UB)?
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Probability Statistics

08/13/22

I need some help with creating a contingency table.
A. A party mix of candy contains a blend of M&Ms, Reese's Pieces, and Skittles. The blend is 50% M&Ms, 30% Reese's Pieces, and 20% Skittles. M&Ms are 14% yellow, Reese's Pieces are 25%... more
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Probability Statistics

08/13/22

1:Use the following probabilities to answer the question. Don't round; enter your answers as ratios
P(A)=0.4  , P(B)=0.65 ,  and  P(A and B)=0.2P(B∣A)=______  P(notB∣A)= ________P(notB∣notA)= _________
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Probability

08/13/22

Probability and statistics
The basketball player Steph Curry is a great free throw shooter. In fact, his shots are independent and all have probability 0.9 of being successful. Suppose he takes 8 shots in the next game.... more
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08/10/22

Probability &statistics
News reports tell us that the average American is overweight. Many of us have tried to trim down to our weight when we finished high school or college. And, in fact, only 20% of adults say they do... more
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Probability Algebra 2

08/08/22

straws numbered from 0-10....
There are 11 different straws numbered from 0-10 (only whole numbers) a student can pick from a basket and the totalscore is assigned to that student. i.e. 1st pick: 5 2nd pick: 3 3rd pick:... more
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Probability Math

08/08/22

Probability problems

Q: if A and B are two events in S and P(A)=2/3 and P(B)=1/4 and P(A' intersection B')=1/61) P(A' - B') =a) 1/6b)1/3c)3/6d)11/15__________________________2) P( A U B ) = a) 1/3b) 2/6c) 5/6d)... more
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Probability

08/06/22

Probability with binomial distribution

A basketball player has a 0.603 probability of making a free throw. If the player shoots 28 free throws, what is the probability that she makes no more than 20 of them? Round to 3 decimal places... more
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Probability Math Statistics

08/06/22

Probability of cards
How many numbers of possible live card hands (hands in five-card poker) drawn without replacement from a standard deck of 52 playing cards?Please give full details!
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Probability Math Statistics

08/06/22

Estimation of probability

Let the random variable X be the number of months that a certain owner of an estate needs to pay a loan in the Bank if he/she has a contract with insurance company to help him/her to pay a loan.Say... more
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Probability Statistics

08/03/22

Discrete probability distribution

You are given the following discrete probability distributions: X        0        1          2            3 P(X)  0.10   0.20     0.30      0.40 A. Compute the mean(expected value) B. Compute the... more
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