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The mean of a data is 15 and the sum of the observations is 195. The number of observations is(a) 13 (b) 19 (c) 16 (d) 17 |
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Answer» The mean of a data is 15 and the sum of the observations is 195. The number of observations is (a) 13 (b) 19 (c) 16 (d) 17 |
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