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 9. WEIGHT was measured in pounds (lbs). If you...

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9. WEIGHT was measured in pounds (lbs). If you calculate the mean, you should find that it is 159.4lbs. If you convert all the values of weIGHr from pounds to kilograms, you should find that the mean weight is going to be 72.3 kg. Notice that 159.4
=72.3, but you know that 159.4lbs=72.3 kg. That is, in order to interpret a number that represents the mean weight you necessarily have to attach the unit of measurement. You cannot simply say that the mean is 159.4 or 72.3 , for example, and expect people to understand the statistic you are reporting. In other words, when reporting the mean weight, bear in mind that you are not reporting a pure number. You are reporting a statistic that requires a unit of measurement. Which of the following statistics does not require a unit of measurement? In other words, when calculating this statistic bear in mind you are reporting a pure number. (Note that there is more than one answer.) (a) standard deviation (f) median (b) range (c) first quartile (g) mode (d) variance (h) coefficient of variation (e) maximum (i) frequency (j) relative frequency
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