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Mathematics, 21.09.2019 00:00 Nashae4771
The mean of a data set is equal to 10 and its standard deviation is equal to 1. if we add 5 to each data value, then the mean and standard deviation become
a. mean = 15 , standard deviation = 6
b. mean = 10 , standard deviation = 6
c. mean = 15 , standard deviation = 1
d. mean = 10 , standard deviation = 1
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