Question
In: Accounting
The data below represents the amount of grams of carbohydrates in a sample serving of breakfast...
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?
Solutions
Expert Solution
let me know if you need any clarification..
| 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 | |||
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