question archive In a series of body length measurements on 10 school children, the mean value x ? = 129 and the standard deviation s = 7 cm were obtained
In a series of body length measurements on 10 school children, the mean value x ? = 129 and the standard deviation s = 7 cm were obtained
Subject:MathPrice: Bought3
In a series of body length measurements on 10 school children, the mean value x ? = 129 and the standard deviation s = 7 cm were obtained. It turned out afterwards that an observation was incorrectly noted, it would have been 133 instead of 137. What will be the corrected average? How is the standard deviation affected? (decreases, unchanged, increases?). Can you say something about how the median is affected?
