Three professors administer a common exam without technical problem to their classes of 40 students each. Suppose that 32 of the students in class A, 30 of the students in class B, and 30 of th students in class C pass the exam. If a student who has passed the exam is chosen at random, what is the probability that the student is in class A?

Q: A club of 25 people consists of 12 men and 13 women. A team of 9 is randomly selected from the club.…

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Q: Suppose a jar contains a total of 72 marbles. There are 17 red marbles, 23 blue marbles and 32 black…

A: It is given that, A jar contains a total of 72 marbles out of which there are 17 red marbles, 23…

Q: committee of 3 is to be chosen from 14, 10 females and 4 males, at random. Josue is one of the…

A: According to the combination rule, if r distinct items are to be chosen from n items without…

Q: Two teams of 10 players are created from a group of 20 people. Suppose you and your friend are in…

A: Probability: If a random experiment results in n mutually exclusive and equally likely outcomes; out…

Q: A familys dog is pregnant with 4 puppies. If the probability each puppy will be yellow like the…

A: From the provided information, A family dog is pregnant with 4 puppies that is n = 4 Probability…

Q: In a family with 3 children, excluding multiple births, what is the probability of having exactly 2…

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Q: Suppose a jar contains 17 red marbles and 14 blue marbles. If you reach in the jar and pull out 2…

A: Here, a jar contains 17 red marbles and 14 blue marbles. Select 2 marbles at random.

Q: A bunch of 100 carrots were harvested from a garden. The farmer inspected four randomly selected…

A: There are total 100 carrots. 5 carrots are rotten. So (100-5)=95 carrots are good. The farmer can…

Q: There are 15 boys and 10 girls in a class. If three students are selected at random, what is the…

A: There are 15 boys and 10 girls in a class.

Q: what is the probability to get 3 tails and 1 head.

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Q: At a local high​ school, 15​% of the students have blue eyes. Each​ day, 9​% of the​ blue-eyed…

A: Let event B denotes that the students have blue eyes and S denotes student wear sun glass Given…

Q: Suppose a jar contains a total of 72 marbles. There are 11 red marbles, 21 blue marbles and 40 black…

A: From the provided information, Total marbles = 72 Red marbles = 11 Blue marbles = 21 Black marbles =…

Q: Out of a group of 10 patients treated with a new drug, 4 suffered a relapse. If 3 patients are…

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Q: At a local​ company, 15​% of the employees are women. Every​ day, 7​% of the women bring their lunch…

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Q: , find the probability that neither is red.

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Q: An after-school club sonsists of 10 juniors and 12 seniors. If 2 students are chosen at random to…

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Q: Suppose a jar contains 20 red marbles and 23 blue marbles. You reach in the jar and pull out two…

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Q: Suppose you have 2 identical green socks, 4 identical red socks, and 14 identical purple socks. If…

A: Given,no.of green socks=2no.of red socks=4no.of purple socks=14Total no.of socks=20

Q: Suppose a jar contains 13 red marbles and 35 blue marbles. If you reach in the jar and pull out 2…

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Q: A batch of 100 cords has 8 defective cords. If 4 cords, taken at random from the batch, are to be…

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Q: A man and his wife appear in an interview for two vacancies in the same post. The probability of…

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Q: A club of 19 people consists of 9 men and 10 women. A team of 9 is randomly selected from the club.…

A: We have to find given probability.

Q: Five items are selected from a box of 15 items and inspected. The box is rejected if more than two…

A: If we have n trials each having two outcomes, say Success and Failure, trials being independent and…

Q: A brother and a sister appear for an interview against two vacant posts in an office. The…

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Q: One student is randomly selected at random from a class with 11 girls and 12 boys. What is the…

A: Answer: From the given data, Number of girls in the class = 11 Number of boys in the class = 12…

Q: Suppose that a student rolls two balanced dice three times in a row. What is the probability that on…

A: There are 6 number on each die so the total number of outcomes=6×6=36

Q: A history class is comprised of 9 female and 5 male students.if the instructor of the class randomly…

A: There are 14 students in the class (= 9 female + 5 male).

Q: We are randomly select 4 people from a group consisting of 6 politicans and 10 criminals. Find the…

A: Number of politicians = 6 Number of criminals = 10 Total number of people = 16

Q: A student is taking a true/false exam with 18 questions. If he guesses on each question, what is the…

A: Given Information 18 true/false question Probability of correct answering p = 0.5 N = 18 Let X be…

Q: A club of 15 people consists of 7 men and 8 women. A team of 9 is randomly selected from the club.…

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Q: What is the probability th 5 up to 9 seconds to arriv alls arrive between the 2

A: let λ= 25 be the average number of balls entering the room every minute Xt~Pλ=25 Ti be the…

Q: there are 6 jobs applicants in a company, 4 are college graduate and 2 are not. If the owner selects…

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Q: A school has 3 math classes, each with 25 students, and 2 science classes, each with 30 students. If…

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Q: A committee of five people is to be chosen at random from a club with 13 members comprised of five…

A: Given: Total members=13            Total men=5             Total women=8To find: The probability…

Q: A committee of two people is to be chosen from five women and 4 men. What is the probability at…

A: Given that there are 5 women and 4 men. So there are total (5+4)=9 people. Given that at least one…

Q: At a local high​ school, 15​% of the students have blue eyes. Each​ day, 9​% of the​ blue-eyed…

A: Given : At a local high​ school, 15​% of the students have blue eyes : P(Blue) = 0.15   Each​ day,…