If we sampled households forever, what Number of Pets would you expect as a long run...
If we sampled households forever, what Number of Pets would you expect as a long run average?
What's the standard deviation for the distribution of Number of Pets?
Random samples of 50 are drawn from this population and the average is computed for each. What can we say about the distribution of the averages with a sample of size 50?
Find the μ for the sample means:
Find the σ for the sample means:
| X = Number of Pets | Probability |
|---|---|
| 0 | 0.0013 |
| 1 | 0.0222 |
| 2 | 0.1421 |
| 3 | 0.4039 |
| 4 | 0.4305 |
Homework Answers
Computational Table:
Average: 
Standard deviation: 
V(X) = E(X2) - [E(x)]2
V(X) = 11.1137 - (3.2402)
V(X) = 0.62
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