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Statistics questions

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A particular multiple choice test has 110 questions, each with four choices (only one of which is correct).

If students were to take the test by guessing the answer to every question on it entirely at random, what would you expect the average number of correct responses per test to be? Provide your response precise to the nearest tenth.

Mar 14th, 2015

probability of getting a question correct=1/4

probability of 110 questions correct= 1/4 *110

=27.5

Mar 14th, 2015

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Mar 14th, 2015
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Mar 14th, 2015
Oct 21st, 2017
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