The number of dogs per household in a small town

Dogs

0

1

2

3

4

5

Probability

0.6310.631

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

Find the mean of the probability distribution.

μ =

​(Round to one decimal place as​ needed.)

Find the variance of the probability distribution.

=

​(Round to one decimal place as​ needed.)

Find the standard deviation of the probability distribution.

σ =

​(Round to one decimal place as​ needed.)

​

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

A.

A household on average has 0.60.6 dog with a standard deviation of 1414 dogs.

B.

A household on average has 0.90.9 dog with a standard deviation of 1.01.0 dog.

C.

A household on average has 0.60.6 dog with a standard deviation of 0.90.9 dog.

D.

A household on average has 1.01.0 dog with a standard deviation of 0.60.6 dog.