# probability and binomial distribution

There are 10 questions on a true-false test. A student feels unprepared for this test and randomly guesses the answer for each of these.

a. What is the probability that the student gets exactly 7 correct?

b. What is the probability that the student gets exactly 8 correct?

c. What is the probability that the student gets exactly 9 correct?

d. What is the probability that the student gets exactly 10 correct?

e. What is the probability that the student gets more than 6 correct?

https://brainmass.com/statistics/probability/probability-binomial-distribution-102883

#### Solution Preview

Please see the attached file for detailed solutions.

The answers can ...

#### Solution Summary

The solution shows how to calculate the probability for the answers to a true-false test where the variable follows binomial distribution.

$2.19