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Coffee with Meals A researcher wishes to determine the number of cups of coffee a customer drinks with an evening meal at a restaurant. X
Coffee with Meals A researcher wishes to determine the number of cups of coffee a customer drinks with an evening meal at a restaurant.
X | 0 | 1 | 2 | 3 | 4 |
---|---|---|---|---|---|
PX | 0.20 | 0.32 | 0.43 | 0.02 | 0.03 |
Find the variance. Round the answer to two decimal places as needed.
Variance: =2 |
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