Question

(1 point) A multiple-choice test consists of 20 questions with possible answers of a, b, c, d, e, f. Estimate the probability that with random guessing the number of correct answers is at least 8. Use Excel to obtain more accuracy.

Answer 1

Answer:

number of trials (n) = 20,

probability of success (p) = 1/6 = 0.167

number of success = 8

we want to find P(x 8)

we are using following excel commant to get required probbility

We get answer as

Thus we get,

Probability = 0.011388