(d) Е(2X- 4). (е) Е(6X+ 3)2 + Var(7X — 24).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 36E
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Question
The random variable X has probability distribution given in the Table 2
below.
-1
P(X=x)
Table 2: The probability distribution
1 2
0.2
3
0.15 0.15
Given that E(X)30.55,find:
Transcribed Image Text:The random variable X has probability distribution given in the Table 2 below. -1 P(X=x) Table 2: The probability distribution 1 2 0.2 3 0.15 0.15 Given that E(X)30.55,find:
(d)
E(2X - 4).
(e)
E(6X+ 3)? +Var(7X – 24).
Transcribed Image Text:(d) E(2X - 4). (e) E(6X+ 3)? +Var(7X – 24).
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