Question

Find the mean of following distribution
4.
p(x)
0.25
0.15

Answer 1

`E(x) =\sum_(i=1)^n X_i P(X_i)`

And replacig we got:

`E(x) = 4*0.25 +5*0.6 +6*0.15= 4.9`

Explanation:

For this case we have the following distribution function

x 4 5 6

p(x) 0.25 0.6 0.15

And we want to find the mean of the distributuon and we can use the following formula:

`E(x) =\sum_(i=1)^n X_i P(X_i)`

And replacig we got:

`E(x) = 4*0.25 +5*0.6 +6*0.15= 4.9`