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The geometric mean of 10 observation s on a certain variable was calculated as 16.2. It was later discovered that one of the observations was

The geometric mean of 10 observation s on a certain variable was calculated as 16.2. It was

later discovered that one of the observations was wrongly recorded as 12.9; in fact it was 21.9.

The correct G.M is:

a) 17.12

b) 18.43

c) 17.08

d) 18.15

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