Let X be a random variable with the following probability distribution: X = -3 6. 1 p(x) = x = 6 x = 9 .3 a) Find E(X) and E(X?) b) Find E[(2X+1)²]

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 31E
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3. Let X be a random variable with the following probability distribution:
X = -3
6.
1
p(x)%3=
x = 6
x = 9
3.
a) Find E(X) and E(X²)
b) Find E[(2X+1)²]
Transcribed Image Text:3. Let X be a random variable with the following probability distribution: X = -3 6. 1 p(x)%3= x = 6 x = 9 3. a) Find E(X) and E(X²) b) Find E[(2X+1)²]
3.
Let X be a random variable with the following probability distribution:
1
X = -3
6.
1
P(x) =
X = 6
%3D
2.
1
X = 9
a) Find E(X) and E(X²)
b) Find E[(2X+1)-]
Transcribed Image Text:3. Let X be a random variable with the following probability distribution: 1 X = -3 6. 1 P(x) = X = 6 %3D 2. 1 X = 9 a) Find E(X) and E(X²) b) Find E[(2X+1)-]
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