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If every value in the data set is muliplied by a constant k>0, the measures of center and measures of variation of the new data set can be found by multiplying each of the original statistics by k.
Mean: 65.4
Median: 62.4
Mode: 57.6
Range: 27
Standard Deviation: 2.16
We want to find the mean, median, mode, range, and standard deviation of the data set in which each value is multiplied by a constant k= 0.6.
Let's start by writing initial data set of size n in the increasing order.
x_1, x_2, ..., x_n
| Statistic | Original Value | Required Change | New Value |
|---|---|---|---|
| Mean | 109 | 109* 0.6 | 65.4 |
| Median | 104 | 104* 0.6 | 62.4 |
| Mode | 96 | 96* 0.6 | 57.6 |
| Range | 45 | 45 * 0.6 | 27 |
| Standard deviation | 3.6 | 3.6* 0.6 | 2.16 |