Answer to Question #298724 in Statistics and Probability for Subham

Question

The geometric mean of a group of 15 observations was calculated as 12. It was later found that one observation was wrongly read as 19 instead of the correct value 9. Obtain the correct geometric mean of the data.

Answer 1

$$G.m.=(\dfrac{12^{15}\cdot9}{19})^{1/15}$$