T'he mean and standard deviation of a set of 100 observations were worked out as 40 and 5 respectively by a com- puter who by mistake took the value 50 in place of 40 for one obser- vation. Recalculate the correct mean and variance.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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on 10.22. The mean and standard deviation of a set of
100 observations were worked out as 40 and 5 respectively by a com-
puter who by mistake took the value 50 in place of 40 for one obser-
vation. Recalculate the correct mean and variance.
Transcribed Image Text:ion on 10.22. The mean and standard deviation of a set of 100 observations were worked out as 40 and 5 respectively by a com- puter who by mistake took the value 50 in place of 40 for one obser- vation. Recalculate the correct mean and variance.
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