54°F Cloudy Let X be a random variable with the following probability distribution. Value x of X P(X=x) 10 0.10 20 0.45 30 0.30 40 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) = ☐ Check Q Search C S © 2024 McGraw Hill LLC. All Right
54°F Cloudy Let X be a random variable with the following probability distribution. Value x of X P(X=x) 10 0.10 20 0.45 30 0.30 40 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) = ☐ Check Q Search C S © 2024 McGraw Hill LLC. All Right
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 14E
Question
Transcribed Image Text:54°F
Cloudy
Let X be a random variable with the following probability distribution.
Value x of X P(X=x)
10
0.10
20
0.45
30
0.30
40
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) = ☐
Check
Q Search
C
S
© 2024 McGraw Hill LLC. All Right
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