A random variable X can take only the values 0, -5, and 2. It is known that Pr[X 0] = 0.3 and Pr[X = -5] 0.1. What is the expected value of X? (A) -1.7 (В) 1 (С) 1.2 (D) 0 (E) 0.7 (F) -5 (G) -0.5 (Н) 1.7 A В H.
A random variable X can take only the values 0, -5, and 2. It is known that Pr[X 0] = 0.3 and Pr[X = -5] 0.1. What is the expected value of X? (A) -1.7 (В) 1 (С) 1.2 (D) 0 (E) 0.7 (F) -5 (G) -0.5 (Н) 1.7 A В H.
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 10E
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Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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![A random variable X can take only the values 0, -5, and 2. It is known that Pr[X = 0] = 0.3
and Pr[X = -5] 0.1. What is the expected value of X?
%3D
(A) -1.7
(B) 1
(С) 1.2
(D) 0
(Е) 0.7
(E)
(F) -5
(G) -0.5
(Н) 1.7
O A
O B
C
O F
H.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F227a7d70-a730-481b-b2b1-9b1357ef921a%2F71106fd0-1866-4682-ae02-f84ce6f05765%2Fjpdklje_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A random variable X can take only the values 0, -5, and 2. It is known that Pr[X = 0] = 0.3
and Pr[X = -5] 0.1. What is the expected value of X?
%3D
(A) -1.7
(B) 1
(С) 1.2
(D) 0
(Е) 0.7
(E)
(F) -5
(G) -0.5
(Н) 1.7
O A
O B
C
O F
H.
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