multiple-choice examination has 50 questions, each with five possible answers, only one of which is correct. Suppose that one of the students who takes the examination answers each of the questions with an independent random guess. What is the the probability that he answers at least 1 question correctly?

Q: find the probability of winning third prize — that is, picking 2 of the 4 winning numbers — with a…

A:

Q: A multiple-choice test contains 20 questions, each with four answers. Assume that a student just…

A: Solution: Let X be the number of correct questions and n be the number of questions. From the given…

Q: In a large population, 67 % of the people have been vaccinated. If 5 people are randomly selected,…

A: Given: Let X be the number of people has been vaccinated.   n=5 and p=0.67 X ~ B (n=5, p=0.67)

Q: A multiple -choice test consists of 6 questions . Each question has answers choices of a,b,c,d, and…

A: From the provided information, Number of questions (n) = 6 Each question has answers choices of…

Q: An office has 7 men and 6 women employees.  Three employees are picked at random for a trip to…

A: 7 men 6 women  ____________ 13 total employees select 3 at random  P(2 males and 1 female) = ?

Q: One bag contains 4 white balls, 3 green balls, and 3 yellow balls.  A second bag contains 2 white…

A: 1st  bag :no.of white balls=4no.of green balls=3no.of yellow balls=3total no.of balls=102nd bag…

Q: If a Basketball player makes 76% of their free throws. What is the probability that they make at…

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