Multiple Choice Please select the best answer and click subm

Multiple Choice: Please select the best answer and click \"submit.\" The following table shows the probability distribution for a discrete random variable. What is the mean of this discrete random variable? That is, what is E(X). the expected value of X?

Solution

Expected value = p1*x1 +p2*x2 ----- pn*xn

E(x) = 24*0.16 + 26*0.09 + 27*0.18 + 32*0.12+ 35*0.24 + 39*0.21

= 31.47

Option B