15. Find the expected value of a random variable having the following probability distribution: X ਅ a. b. C. d. e. 1 33 70 19 35 109 140 33 140 P(X=x) -3 3/10 -1 1/5 0 1/14 1 5 1/7 2/7

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.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 14E
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15. Find the expected value of a random variable having the following probability distribution:
+
a.
b.
C.
d.
e.
33
70
19
35
109
140
33
140
X
P(X=x)
-3
3/10
-1
1/5
0
1/14
1
1/7
5
2/7
Transcribed Image Text:15. Find the expected value of a random variable having the following probability distribution: + a. b. C. d. e. 33 70 19 35 109 140 33 140 X P(X=x) -3 3/10 -1 1/5 0 1/14 1 1/7 5 2/7
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