MCQOPTIONS
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MCQOPTIONS
| 1. |
According to empirical rule, the standard deviation and mean interval that covers approximately 68.27% of data from a frequency distribution is |
| A. | μ±σ |
| B. | 2μ±2σ |
| C. | 3μ±2σ |
| D. | 4μ±4σ |
| Answer» B. 2μ±2σ | |