MCQOPTIONS
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MCQOPTIONS
| 1. |
When the sample size is variable, which one of these can be used to evaluate the value of x double bar? |
| A. | ( frac{ sum_{i=1}^m n_i bar{x_i}}{ sum_{i=1}^n n_i} ) |
| B. | ( frac{ sum_{i=1}^n n_i bar{x_i}}{ sum_{i=1}^m n_i} ) |
| C. | ( frac{ sum_{i=1}^n n_i bar{x_i}}{ sum_{i=1}^n n_i} ) |
| D. | ( frac{ sum_{i=1}^m n_i bar{x_i}}{ sum_{i=1}^m n_i} ) |
| Answer» E. | |