x 16 17 18 19 20 Px 02 01 02 01 04 Given the discrete probab

x 16 17 18 19 20 P(x) 0.2 0.1 0.2 0.1 0.4 Given the discrete probability distribution above, determine the following:

   P(x17) =

Solution

We are given that the discrete probability distribution of x is,

P(x17) = P(x = 17 or 18 or 19 or 20)

= P(x=17) + P(x=18) + P(x=19) + P(x=20)

= 0.1 + 0.2 + 0.1 + 0.4

P(x17) = 0.8