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In: Statistics and Probability

3.2 Our overworked student trudges to his 3rd exam of the day, a true/false exam with...

3.2 Our overworked student trudges to his 3rd exam of the day, a true/false exam with 100 questions. Again,he just guesses the answers. Notice that this time he has a 50% chance of getting each particular question correct.

a. What is the probability that the student gets at least one question correct?

b. What is the probability that the student gets between 15 and 35 questions (inclusive) correct?

c. What is the probability that the student gets between 40 and 60 questions (inclusive) correct?

d. What is the probability that the student passes the exam (gets 60 or more questions correct)?

Solutions

Expert Solution

The problem has been solved in the excel.

Here the probability of success (p) =0.5

The solutions to all the 4questions,, along with excel formulas is given

orchestra answered 2 years ago
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