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1. |
If the standard deviation of population 1 is 3 with sample size is 8 and the population 2 standard deviation is 5 with sample size is 7 then the standard deviation of sampling distribution is |
A. | 4.044 |
B. | 3.044 |
C. | 1.044 |
D. | 2.044 |
Answer» D. 2.044 | |