# How do you find the mean of the following probability distribution?

##
X P(X)

1 0.20

2 0.10

3 0.35

4 0.05

5 0.30

X P(X)

1 0.20

2 0.10

3 0.35

4 0.05

5 0.30

##### 1 Answer

Jan 21, 2017

Mean is

#### Explanation:

Mean of a probability distribution given by

is

And hence mean is

=

=