Test generator A professor of statistics wants to prepare a test paper by selecting five questions randomly

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Test generator A professor of statistics wants to prepare a test paper by selecting five questions randomly from an online test bank available for his course. In the test bank, the proportion of questions labeled "HARD" is 0.3.

a. Find the probability that all the questions selected for the test are labeled HARD.

b. Find the probability that none of the questions selected for the test is labeled HARD.

c. Find the probability that less than half of the questions selected for the test are labeled HARD.

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Related Book For  book-img-for-question

Statistics The Art And Science Of Learning From Data

ISBN: 9781292444765

5th Global Edition

Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

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