Complete parts(a) and(b) below.

The number of dogs per household in a small town

Dogs

0

1

2

3

4

5

Probability

0.661

0.212

0.085

0.022

0.014

0.006

(a) Find themean, variance, and standard deviation of the probability distribution.

Find the mean of the probability distribution.

=

(Round to one decimal place asneeded.)

Find the variance of the probability distribution.

2=

(Round to one decimal place asneeded.)

Find the standard deviation of the probability distribution.

=

(Round to one decimal place asneeded.)

(b) Interpret the results in the context of thereal-life situation.

A.

A household on average has 0.8 dog with a standard deviation of 0.9 dog.

B.

A household on average has 0.9 dog with a standard deviation of 0.5 dog.

C.

A household on average has 0.5 dog with a standard deviation of 11 dogs.

D.

A household on average has 0.5 dog with a standard deviation of 0.9 dog.