Out of 10,000 students in a university, a sample of 400 is taken, the monthly average of the expenditure of these 400 students is found to be Rs. 75 and the standard deviation Rs. 2.50. Set the limits within the average of additional sample would be
| A. | 192 |
| B. | 0.125 |
| C. | 163 |
| D. | 125 |
Answer : B Explanation :
If additional samples are taken from the same universe, then their means would lie between 75 ± 3 (0.125) i.e. 75.35 and 74.625. Hence the answer is (b). |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
