SOLUTION: The number of minutes, rounded to the nearest whole minute, a randomly selected customer spends viewing his account information on a secure web page is described by the probability

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Question 929429: The number of minutes, rounded to the nearest whole minute, a randomly selected customer spends viewing his account information on a secure web page is described by the probability distribution for the discrete random variable X; described by the table shown here. What is the average value or expected value of X, namely E(X)?

X 0, 1, 2, 3, 4
P(x) .1, .4, .3, .1, .1




A 1.1

B 2.0

C 1.0

D 1.7

E 1.5
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

 X    0,   1,  2,  3,  4

P(x) .1, .4, .3, .1, .1

...........

Exp = 0(.1) + 1(.4) + 2(.3) + 3(.1) + 3(.1) = 1.6