MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the formula for calculating the SD of ungrouped data? |
| A. | \(\frac{{\sum FX}}{N}\) |
| B. | \(\frac{{\sum FX^2}}{N}\) |
| C. | \(\sqrt{\frac{{\sum X^2}}{N}}\) |
| D. | \(\sqrt {\frac{{\sum {X^2}}}{N} - {{\left( {\frac{{\sum FX}}{N}} \right)}^2}} \) |
| Answer» D. \(\sqrt {\frac{{\sum {X^2}}}{N} - {{\left( {\frac{{\sum FX}}{N}} \right)}^2}} \) | |