Find the mean and standard deviation of the number of red lights the commuter in Exercise 24

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Find the mean and standard deviation of the number of red lights the commuter in Exercise 24 should expect to hit on her way to work during a 5-day work week.

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Stats Data and Models

ISBN: 978-0321986498

4th edition

Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock

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Question Posted: Jan 20, 2016 05:57 AM

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Find the mean and standard deviation of the number of red lights the commuter in Exercise 24

Question:

x=#of red 0 1 2 3 P(X x) 0050.25 0.35 0.15 0.15 0.05

Step by Step Answer:

Ered lights in 5 days 5Ered lights each day 5225 1125 red lights SDred ...View the full answer

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