The value of E [# X²] is 17

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Topics In Analytic Geometry
Section6.4: Hyperbolas
Problem 5ECP: Repeat Example 5 when microphone A receives the sound 4 seconds before microphone B.
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Let X be a discrete random variable with probability mass function (pmf)
1
82
х 3 — 6, —2, —1,0, 1, 2, and 6
||
Px(x)
=
otherwise
The value of E# X2 is
Transcribed Image Text:Let X be a discrete random variable with probability mass function (pmf) 1 82 х 3 — 6, —2, —1,0, 1, 2, and 6 || Px(x) = otherwise The value of E# X2 is
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