The mean of data is 10. If each observation is multiplied by 2 and 1 is subtracted from each result, the mean of the new observation is ……
The mean of data is 10. If each observation is multiplied by 2 and 1 is subtracted from each result, the mean of the new observation is ……
A) 21
B) 19
C) 9
D) 10
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