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Binomial Probability: Guessing Answers

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Each question has 5 possible answers of which only one is correct.

a) What is the probability the student will guess them all right?

b) The probability that he will guess AT MOST 12 correct.

c) The probability that he will guess at least one correct.

d) The mean and standard deviation of the number of the correct answers

e) Estimate the probability of the number of correct answers that will fall within the limits mean +- 2 variance.

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Solution Summary

The solution provides step-by-step method for the calculation of binomial probability of guessing correct answers in a test. Formula for the calculation and Interpretations of the results are also included.

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