A discrete random variable X has the following p.m.f.: -2 f(x) 0.3 0.4 P(X-2)- O 0.3 O 07 O 05 2.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 29E
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10 12

A discrete random variable X has the following p.m.f.:
-2
2.
f(x)
0.3
0.4
P(X-2)=
O 0.3
O 0.7
O 0.5
Question 11
Based on 8(a), the mean of X is
Question 12
Based
8(a) (b). the variance of X is
Transcribed Image Text:A discrete random variable X has the following p.m.f.: -2 2. f(x) 0.3 0.4 P(X-2)= O 0.3 O 0.7 O 0.5 Question 11 Based on 8(a), the mean of X is Question 12 Based 8(a) (b). the variance of X is
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