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Suppose a quiz has 11 multiple choice questions. Each question has 4 answer choices. If a student takes the quiz and randomly guesses on every questionQuestion 1Find the probability thestudent gets between 3 and 8, exclusive, questions correct.Question 2 Find the probability the student gets more than 7 questions correct

Question
Suppose a quiz has 11 multiple choice questions. Each question has 4 answer choices. If a student takes the quiz and randomly guesses on every question
Question 1
Find the probability thestudent gets between 3 and 8, exclusive, questions correct.
Question 2 Find the probability the student gets more than 7 questions correct
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Suppose a quiz has 11 multiple choice questions. Each question has 4 answer choices. If a student takes the quiz and randomly guesses on every question Question 1 Find the probability thestudent gets between 3 and 8, exclusive, questions correct. Question 2 Find the probability the student gets more than 7 questions correct

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Step 1

This question  is based on binomial probability distribution, where n = 11 and Probability of makng a correct answer is 0.25.

Since each question has only 1 correct answer  out of 4 options So probability of making correct answer is 0.25.

The formula used to get the probability is given on white board.

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Step 2

We have to find the probability of getting more than 4 and less than 8 correc answers out of 11.

 

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Step 3

Now we have to calculate the probability that more  ...

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