Adding (or subtracting) the same number from each value in a set of data does not affect
Question:
Adding (or subtracting) the same number from each value in a set of data does not affect the measures of variability for that set of data.
a. Find the variance of this set of annual heatingdegree-
day data: 6017, 6173, 6275, 6350, 6001, 6300.
b. Find the variance of this set of data (obtained by subtracting 6000 from each value in part a):
17, 173, 275, 350, 1, 300.
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Related Book For 
Just The Essentials Of Elementary Statistics
ISBN: 9780495314875
10th Edition
Authors: Robert Johnson, Patricia Kuby
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