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The number of dogs per household in a small town Dogs 0 1 2 3 4 5 Probability 0.631 0.232 0.090 0.023 0.016 0.
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.
