Multiplied by 3 | Filo
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Class 11

Math

Algebra

Sequences and Series

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Multiplied by 3

Solution: Mean of the given data
                                          

If is the mean of n number of observations then mean of is
Thus, when each of the given data is multiplied by 3, the mean is also multiplied by 3.
Mean of the original data is 12.
Hence, the new mean = 12 x 3 = 36
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