Question

The following table shows the probability distribution for a discrete random

Answer 1

Answer:

• Option C. 29.47

Explanation:

The expected value, E(X) or mean of a discrete random variable is given by:

        $E(X)=\sum\limits^n_i {x_i}\cdot P(x_i)$

Using the data from the table:

$E(X)=22\times 0.16+24\times 0.09+25\times 0.18+30\times 0.12+33\times 0.24+37\times 0.21$

Computing:

         $E(X)=3.52+2.16+4.50+3.60+7.92+7.77=29.47$

Answer 2

Answer:

29.47, or option C.

Step-by-step explanation: