Given independent random variables with means and standard deviations as shown, find the mean and standard deviation

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Given independent random variables with means and standard deviations as shown, find the mean and standard deviation of:
a) X - 20
b) 0.5Y
c) X + Y
d) X - Y
e) Y1 + Y2

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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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Given independent random variables with means and standard deviations as shown, find the mean and standard deviation

Question:

Mean SD X 8012 Y 12 3

Step by Step Answer:

a EX 20 EX 20 80 20 60 SDX 20 SDX 12 b E05Y 05EY 0512 6 SD05Y 05SD...View the full answer

Stats Data and Models

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