20 0.25 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (X) = 0 (b) Find the variance Var(X) of X. Var(x) = 0 X Ś
20 0.25 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (X) = 0 (b) Find the variance Var(X) of X. Var(x) = 0 X Ś
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 \( X \) | \( P(X=x) \) |
|--------------------------|-------------|
| -10 | 0.30 |
| 0 | 0.40 |
| 10 | 0.05 |
| 20 | 0.25 |
Complete the following. (If necessary, consult a list of formulas.)
(a) Find the expectation \( E(X) \) of \( X \).
\[ E(X) = \, \]
(b) Find the variance \( \text{Var}(X) \) of \( X \).
\[ \text{Var}(X) = \, \]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2743f58a-999a-485c-8435-d316e3b49890%2F28e811a6-1a59-4b3e-bafa-4110bf41fa23%2Fbl5ie9a_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Let \( X \) be a random variable with the following probability distribution.
| Value \( x \) of \( X \) | \( P(X=x) \) |
|--------------------------|-------------|
| -10 | 0.30 |
| 0 | 0.40 |
| 10 | 0.05 |
| 20 | 0.25 |
Complete the following. (If necessary, consult a list of formulas.)
(a) Find the expectation \( E(X) \) of \( X \).
\[ E(X) = \, \]
(b) Find the variance \( \text{Var}(X) \) of \( X \).
\[ \text{Var}(X) = \, \]
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