Probability distribution -the number of dogs per household

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Reference no: EM13119634

Probability Distribution: Mean, Variance & S.D.

A frequency distribution is shown below. Complete parts (a) through (e).
The number of dogs per household in a small town

Dogs 0 1 2 3 4 5

Households 1157 417 168 45 26 16

a) Use the frequency distribution to construct a probability distribution.

X P(X)

b) Find the mean of the probability distribution.

c) Find the variance of the probability distribution.

d) Find the standard deviation of the probability distribution.

e) Interpret the results in the context of the real-life situation.

A. A household on average has 0.6 dog with a standard deviation of 1.0 dog.

B. A household on average has 0.6 dog with a standard deviation of 16 dog.

C. A household on average has 1.0 dog with a standard deviation of 0.6 dog.

Reference no: EM13119634

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