MCQOPTIONS
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| 1. |
What is the standard deviation of the following series [DCE 1996] Measurements 0-10 10-20 20-30 30-40 Frequency 1 3 4 2 |
| A. | 81 |
| B. | 7.6 |
| C. | 9 |
| D. | 2.26 |
| Answer» D. 2.26 | |