Solve the problem.Suppose that the data set {x1, x2, x3, ..., xN} has median M and interquartile range IQR. If M' and IQR' are the median and interquartile range of the data set 
respectively, then
A. M' = M + c, and IQR' = IQR + c.
B. M' = M, and IQR' = IQR.
C. M' = M, and IQR' = IQR + c.
D. M' = M + c, and IQR' = IQR.
E. none of these
Answer: D
Mathematics
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