National safety statistics suggest that about 33% of the persons treated in an emergency room because of

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National safety statistics suggest that about 33% of the persons treated in an emergency room because of moped accidents are under 16 years of age. Suppose you count the number of persons under 16 among the next 14 moped accident victims to come to the emergency room.
(a) Find the mean of X.
(b) Find the standard deviation of X.
(c) Find the probability that the first injured person is under 16 years old and the second is at least 16 years old.
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Statistics Principles And Methods

ISBN: 9780470904114

7th Edition

Authors: Richard A. Johnson, Gouri K. Bhattacharyya

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