Question

The data below represents the amount of grams of carbohydrates in a sample serving of breakfast cereal. 10 18 24 30 19 22 24 20 18 25 20 22 19

what is the variance?

Answer 1

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Number	Value	=(value - 20.85)^2
1	10	117.64
2	18	8.10
3	24	9.95
4	30	83.79
5	19	3.41
6	22	1.33
7	24	9.95
8	20	0.72
9	18	8.10
10	25	17.25
11	20	0.72
12	22	1.33
13	19	3.41
Total	271	265.69
Mean =271/13		20.85
Variance =		=(265.69/(13-1))
Variance =		22.14
therefore answer =			22.14