Question

The following is the probability distribution of the number of years of work experience of the employees of a certain firm: X P(X=x) 5 0.32 10 0.4 15 0.12 20 0.16 Find the expected value of this random variable: Select one: a. 10.6 b. 0.21 c. 12.5 d. 6.38

          The following is the probability distribution of the number of years
of work experience of the employees of a certain firm:
X P(X=x)
5 0.32
10 0.4
15 0.12
20 0.16
Find the expected value of this random variable:
Select one:
a. 10.6
b. 0.21
c. 12.5
d. 6.38

The following is the probability distribution of the number of years
of work experience of the employees of a certain firm:
X P(X=x)
5 0.32
10 0.4
15 0.12
20 0.16
Find the expected value of this random variable:
Select one:
a. 10.6
b. 0.21
c. 12.5
d. 6.38

Added by Gabriel H.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Hoan Nguyen

Step 1

In this case, the random variable is the number of work experience in years, and the corresponding probabilities are 0.32, 0.4, 0.12, and 0.16 for the values 0, 10, 15, and 20, respectively. So, the expected value can be calculated as follows: Expected value = Show more…

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The following is the probability distribution of the number of work experience of the employees in years of a certain firm: XP(X=x) 0.32 10 0.4 15 0.12 20 0.16 Find the expected value of this random variable: Select one: 10.6 b. 0.21 12.5 d. 6.38