Sales volume last weekend for a sample of ten car dealerships were as follows:
| Data Point | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| # Sales | 44 | 12 | 20 | 49 | 23 | 30 | 34 | 21 | 14 | 36 |
What is the standard deviation of the sample data?
Please round your answer to the nearest tenth.
Note that the correct answer will be evaluated based on the full-precision result you would obtain using Excel.
Enter the data in Excel as follows:
| A | |
|---|---|
| 1 | 44 |
| 2 | 12 |
| 3 | 20 |
| 4 | 49 |
| 5 | 23 |
| 6 | 30 |
| 7 | 34 |
| 8 | 21 |
| 9 | 14 |
| 10 | 36 |
| 11 | =STDEV.S(A1:A10) |
This gives the standard deviation of the sample = 12.42801
Rounded to the nearest 10th = 12.4
Sales volume last weekend for a sample of ten car dealerships were as follows: Data Point...
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