Question

find the mean of the discrete random variable with the probability distribution below
x | 5 9 12 14 19
p(x)| 0.2 0.15 0.1 0.3 0.25

Answer 1

multiply each x by each p(x) and add the result

Answer 2

Mean is summation of [x times p(x)]

Answer 3

\[5\times .2+9\times .15+12\times .1+14\times .3+19\times .25\]

Answer 4

thats all i have to do @satellite

Answer 5

that is all!

Answer 6

thank you

Answer 7

yw