Question 705042

Added on: Sep 19, 2026
SCQEASY

A set of 100 data points yields an average xˉ=9\bar{x} = 9 and a standard deviation σx=4\sigma_x = 4. The error in the estimated mean is closest to

(A)

3.0

(B)

0.4

(C)

4.0

(D)

0.3

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