Question

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.

Step 2

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

Step 3

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

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