MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the standard formula of sample variance? |
| A. | ( frac{ sum_{i=1}^n (x_i- bar{x})^{1/2}}{n-1} ) |
| B. | ( frac{ sum_{i=1}^n (x_i- bar{x})^{2}}{n-1} ) |
| C. | ([ frac{ sum_{i=1}^n (x_i- bar{x})^{2}}{n-1}]^{1/2} ) |
| D. | ( frac{ sum_{i=1}^n (x_i- bar{x})^{2}}{n} ) |
| Answer» B. ( frac{ sum_{i=1}^n (x_i- bar{x})^{2}}{n-1} ) | |