An instructor gives his class a set of 12 problems with the information that the next quiz will consist of a random selection of 4 of them. If a student has figured out how to do 9 of the problems, what is the probability the he or she will answer correctly (a) all 4 problems? 0.2545 (b) at least 3 problems.

Q: Suppose I give you a list of 23 problems to study, from which I will randomly pick 10 questions for…

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Q: In the cafeteria, there are 7 teachers, 48 girls, and 45 boys. What is the probability that a person…

A: We have given that, In a Cafeteria, there are 7 teachers, 48 girls and 45 boys. Total person in the…

Q: You are to flip a fair coin, where probability of heads is equal to 50% (and tails is 50%). The fair…

A: Answer:- Given, The probability of head , P(H) = 50% = 0.50  The fair coin is flipped, n = 100000…

Q: Suppose the passing grade for a certain true-false quiz, with 10 questions is 80% with each question…

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Q: Clara is a medical assistant who gives 14 people a flu shot in one day. The probability of…

A: Givenn=14p=0.14x~Binomial(n=14,p=0.14)P(X=x)=(nx)×px×(1-p)n-x    ;  x=0,1,...,n

Q: for part d would I just add up all the ones past the 0.5? when I open the table it only goes to 0.5…

A: The information provided in the question are as follows :-Probability of success on a single trial…

Q: The probability of flipping a coin and having it land on heads is 1/2.   If a coin is tossed 4…

A: The number of coins flipped is 1. The probability of getting head is

Q: The Cardinals have a 0.44 probability of getting to the World Series. If the Cardinals are their…

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Q: Steve has 12 biscuits in a tin. There are 5 digestive and 7 chocolate biscuits. Steve takes two…

A: Given that, Total number of biscuits = 12 5 digestive biscuits and 7 chocolate biscuits We to find…

Q: if the probabilty that junior goes to the grocery store is 0.6 and the probability that he buys…

A: P(junior goes to the grocery store) = 0.6 P(buys strawberries given he is at the grocery store) =…

Q: A Student takes an exam with 10 questions suppose that a student was able to study a little for the…

A: Given that, A Student takes an exam with 10 questions suppose that a student was able to study a…

Q: You have a homework assignment that contains 12 questions. Your instructor will grade a set of 5…

A: Given: Total number of questions, n = 12            5 questions would be graded Part 1: The total…

Q: Can the value 2 be a probability?

A: Valid conditions for probability: The probability is non-negative. That is, the probability is…

Q: The probability of winning the "grand prize" at a fortune spinning wheel is p=0.2. Assume you record…

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Q: Three guys Kojo, Mensah and Jack were required to fire and hit a target once as part of their…

A: It is given that the probability that Kojo, Mensah and Jack hit the target are 1/2, 1/5 and 3/4…

Q: Suppose I give you a list of 21 problems to study, from which I will randomly pick 14 questions for…

A: The given information is as follows:There are 21 problems out of which one can completely understand…

Q: Let's say you have a bag with 22 cherries. 10 of the cherries are sweet and 12 are sour. If you pick…

A: Given that there are total 22 cherries. Among them 10 cherries are sweet.  So, the probability that…

Q: The probability Kayla will score above 80% on a mathematics test is 0.60. Kayla will take five tests…

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Q: The probability that divon cannot solve a question is 5/9 and the problem that Suzy solves same…

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Q: Ali has taken two books with him for holiday. The probability of liking the first book is 0.5, the…

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Q: The probability of a number cube landing on 5 is 1/6.  If a number cube is tossed 72  times, how…

A: Given that: n=the number of trials=72 p=probability of landing on 5= 1/6   Each toss is independent…