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Question

The mean of 15 observations is 32. Find the resulting mean. if each observation is increased by 60%

A
51.2
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B
50.2
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C
61.2
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D
None of these
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Solution

The correct option is A 51.2
Mean of the data=32
If every observation is increased by 60% then mean also increases by 60%
The required mean =60100×32+32
=19.2+32
=51.2

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