If d is the standarddeviation of x, y, and z, what is the standard deviation of x + 5, y + 5, and z+ 5 ?
d
3d
15d
d+5
d+15
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If each data point in a set is increased by same amount, the SD will not change although the mean increases.
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If each data point in a set is increased by same amount, the SD will not change although the mean increases.
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