Let X be a random variable with the following probability distribution. Value x of X P (X=x) 20 0.10 30 0.05 40 0.70 0.15 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (x) = ] %3D (b) Find the variance Var(X) of X. Var(x) = ] 50
Let X be a random variable with the following probability distribution. Value x of X P (X=x) 20 0.10 30 0.05 40 0.70 0.15 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (x) = ] %3D (b) Find the variance Var(X) of X. Var(x) = ] 50
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![Let X be a random variable with the following probability distribution.
Value x of X P (X=x)
20
0.10
30
0.05
40
0.70
50
0.15
Complete the following. (If necessary, consult a list of formulas.)
(a) Find the expectation E (X) of X.
E (x) = []
(b) Find the variance Var(X) of X.
Var(X) = []](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faf648817-a410-42c0-9aed-d7ed1ec84584%2Ff6fa6820-f19b-46d0-a419-f4d8004a7c5d%2F7qd878p_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Let X be a random variable with the following probability distribution.
Value x of X P (X=x)
20
0.10
30
0.05
40
0.70
50
0.15
Complete the following. (If necessary, consult a list of formulas.)
(a) Find the expectation E (X) of X.
E (x) = []
(b) Find the variance Var(X) of X.
Var(X) = []
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