Let X be a random varlable with the following probability distribution. Value x of X P (X=x) 10 0.10 20 0.15 30 0.15 40 0.20 50 0.40 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 Check acer

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.3: Binomial Probability
Problem 2E: If a binomial experiment has probability p success, then the probability of failure is...
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Let X be a random varlable with the following probability distribution.
Value x of X P(X=x)
10
0.10
20
0.15
30
0.15
40
0.20
50
0.40
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
Check
acer
Transcribed Image Text:Let X be a random varlable with the following probability distribution. Value x of X P(X=x) 10 0.10 20 0.15 30 0.15 40 0.20 50 0.40 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 Check acer
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