17. If the number 10 is added to each value of a data set, then: (a) The mean goes up by 10 and the standard deviation stays the same. (b) The mean goes up by 10 and the standard deviation goes up by 10 (c) The mean goes up by 10 and the standard deviation goes down by 10 (d) The mean and the standard deviation both stay the same. (e) It is impossible to tell what happens to both the mean and the standard deviation.

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