Bowling Scores​
​ 40 64 ​ 66 ​67 67 68 69 ​ 70 ​ ​ 71 ​ 72 ​ 78
Part A
What is the range of this data set?


​Part B
What is the interquartile range of this data set?

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​Part C
Which measure, the range or the interquartile range, is a ​better measure of the spread of this data set? Why