Question

Need help with part D and E for this question.

Step 1

It is given that *n* =10.

Here, probability of getting question is wrong is 0.8. Therefore, the probability of getting question is correct is 0.2.

The probability mass function of binomial distribution is given below:

Step 2

**d.**

Here, *p* = 0.2.

The probability of getting more than 8 questions correct is obtained as follows:

Step 3

Thus, the probability of getting more than 8 questions correct is **0.000000512**.

**e.**

The ...

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