Lee takes 7 hours to mow all of the yards on his block. If his brother JJ helps him, they are able to do the same job in 3 hours
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Solution
- The Range of a dataset is simply the difference between the largest number and the smallest number in the dataset.
- In the dataset given, the largest number is 12 while the smallest number is 3.
- Thus, the Range of the dataset is
Range = 9