a) Find the expectation E (X) of X. E (x) = [] %3D b) Find the variance Var(X) of X. Var(X) Var (X) = 0
a) Find the expectation E (X) of X. E (x) = [] %3D b) Find the variance Var(X) of X. Var(X) Var (X) = 0
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Expert Solution
Step 1
Consider the table ,
x | P(x) | x*P(x) | x^2*P(x) |
30 | 0.05 | 1.5 | 45 |
40 | 0.3 | 12 | 480 |
50 | 0.1 | 5 | 250 |
60 | 0.2 | 12 | 720 |
70 | 0.2 | 14 | 980 |
80 | 0.15 | 12 | 960 |
Total | 1 | 56.5 | 3435 |
Our aim is to find the (a) E(X) (b) Var(X)
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