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# Probability problem- A student has to sit a multiple-choice test with five questions

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A student has to sit a multiple-choice test with fi ve questions. Each question has five answer choices.
Only one of the choices is correct. He does not know what the answer is to any question, so he
guesses the answer randomly. Find the probability of answering
a) the fi rst question correctly;
b) the first two questions correctly;
c) exactly two questions correctly;
d) none of the questions correctly;
e) at least one of the questions correctly.

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https://brainmass.com/statistics/probability/probability-example-problems-494711

#### Solution Preview

Question. A student has to sit a multiple-choice test with five questions. Each question has five answer choices. Only one of the choices is correct. He does not know what the answer is to any question, so he guesses the answer randomly. Find the probability ...

#### Solution Summary

This solution provides steps to determine the answers to each of the probability problems.

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