Question

The mean of 10 observations is 6. If each observation is doubled, then the mean of the new
data sat is​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

If the mean of 10 observations is 8.5, then the sum total of the 10 observations is 6×10=60.

Now, if each of the observations is double, then by associative property, the new sum would be equal to twice the previous sum. Hence the new total is 60×2=120. As a result, the new mean is 120÷10=12, twice the previous mean.