Each of 16 students measured the circumference of a tennis ball by four different methods
a. If the measurements for one of the methods were converted to inches (1 inch = 2.54 cm), how would this affect the mean? The median?The quartiles?The standard deviation?
b. If the students remeasured the ball, using a ruler marked in inches, would the effects on the mean, median, quartiles, and standard deviation be the same as in part (a)? Explain.
(a) All would be divided by 2.54.
(b) Not exactly the same, because the measurements would be a little different the second time.
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