5,341 Answered Questions for the topic probability

Probability

03/12/21

If i have 2 types of balls in a bag one is red and other is blue balls. I am choosing randomly (don't know which color i will get). Then what is probability that i will get red balls 6 time in a row
If i have 2 types of balls in a bag one is red and other is blue balls. I am choosing randomly (don't know which color i will get). Then what is probability that i will get red balls 6 time in a... more
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Probability

03/12/21

How are Exponential and Gamma distribution related?

Suppose the survival time X in weeks of a randomly selected male mouse exposed to 240 rads of gamma radiation has a gamma distribution with 𝛼 = 8 and 𝛽 = 15. What is the probability that a mouse... more
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Probability

03/12/21

A statistical professor plans classes so carefully that the length of the classes are uniformly distributed between 49mins to 54mins.

What is the probability that on a certain day he teaches less than 50.5 mins?
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Probability

03/12/21

probability statistics
the sample space s= ( E1,E2,E3,E4,E5,E6,E7,E8,E9,E10,E11) and A=(E5,E6,E7,E8) and B=(E5,E7,E9,E11) what is A interaction B?what is the A union of A and B?
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Probability

03/11/21

Given P ( A ) = 0.7 P(A)=0.7, P ( B ) = 0.56 P(B)=0.56 and P ( A ∩ B ) = 0.522 P(A∩B)=0.522, find the value of P ( B ∣ A ) P(B∣A), rounding to the nearest thousandth, if necessary.
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03/11/21

Of the last 10 people at a carnival booth, 4 won a prize. What is the experimental probability that the next person at the booth will win a prize?
A] .1B] .2C] .3D] .4
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03/11/21

At a garden center where she works, joy recently stopped a wide....
At the garden center where she works, Joy recently stocked a wide selection of herb plants; 17 sage, 24 basil, one cilantro, 7 thyme, and 9 Rosemary. What is the experimental probability that the... more
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03/11/21

Statistics help!
Tennis superstar Nadal's first serve speeds in a recent season can be modeled by a normal distribution with mean 115 mph and standard deviation 6mph. let x = the speed (in mph) of a randomly... more
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Probability Math Statistics Statistics

03/11/21

Statistics Probability

from 1985 to 2006 the average height of an NBA player was 6 foot 7 (79 inches) suppose the distribution is approximately normal and the standard deviation is 2.8 inches. what is the probability... more
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03/11/21

Statistics Probability

A manufacturer knows that their items have a normally distributed length with a mean of 17.4 inches, and a standard deviation of 1.4 inches. if 13 items are chosen at random what is the probability... more
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Probability Statistics

03/10/21

need help solving this problem. simplified. please include answer.
In a certain city, 60% of high school students graduate. Of those who graduate, 28% attend college. Find the probability that a randomly selected high school student will attend college.
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Probability

03/10/21

There are 435 seniors at a high school and they are all placed in groups consisting of more than 2 students but fewer than 30 students.
There are 435 seniors at a high school and they are all placed in groups consisting of more than 2 students but fewer than 30 students. Each group is to have an equal number of students and each... more
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Probability

03/10/21

What is the probability that you will draw a Ace card from a standard deck of cards (52)? Your answer should be in simplest fraction form.
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Probability

03/10/21

What is the probability you pick a student in the school and they prefer to use Tik-Tok OR they are a Junior? (Write as a percent rounded to the nearest hundredth)
Classification Tik-Tok Snapchat Total Freshman 345 122 467 Sophomore 289 203 492 Junior 178 109 287 Senior 103 189 292 Total 915 623 1538
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Probability

03/10/21

it long so i put it in the description
.A basketball player has a 60% chance of making each free throw. What is the probability that the player makes exactly three out of six free throws? Write your answer as a decimal number and round... more
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Probability

03/10/21

it long so i put it in the description
An archer has a 25% chance of hitting the bullseye on a target. What is the probability that the archer will hit the bullseye at most three out of five times? Round your percent answer to the... more
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Probability

03/10/21

it long so i put it in the description
An archer has a 25% chance of hitting the bullseye on a target. What is the probability that the archer will hit the bullseye at most three out of five times? Round your percent answer to the... more
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Probability

03/10/21

A bag contains three real diamonds and two fake diamonds. What is the probability that you randomly choose a real diamond? Write your answer as a reduced fraction.
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Probability

03/10/21

Help pls this question is confusing, thank you

Three cards are dealt from a shuffled standard deck of playing cards.What is the probability that the three cards dealt are, in order, an ace, a face card, and an 8? (A face card is a jack, queen,... more
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Probability

03/10/21

A pair of dice are tossed. What is the probability that doubles are rolled, given that the sum on the two dice is less than 8? (Round your answer to three decimal places.)
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Probability

03/09/21

Let X be the sum of the two bills selected. Then P(X>16)?

A box contains one $5 bill, three $10 bills, and four $20 bilis. A bill is selected at random, and it is not replaced: then a second bill is selected at random. Let X be the sum of the two bills... more
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Probability

03/09/21

What is the probability that at least one of a pair of fair dice lands of 5, given that the sum of the dice is 9?
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Probability

03/08/21

what is the probability of guessing correctly at least six of the ten answer in a true false objective test
In your probability solutions (1-252/1024)÷2 = 772/2048 how ?Please explain it.
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Probability Business

03/08/21

probability applications of count
mixed in a drawer are 4 blue socks, 8 white socks, and 8 gray socks. you pull out two socks, one at a time, without looking. find the probability of getting 2 socks of the same color.
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Probability

03/08/21

The random variable X has a binomial distribution with n= 10 and p= 0.5. Determine the following probabilities: (a) P(X=5), (b) P(X≤2), (c) P(X≥9), (d) P(3≤X<5)
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