Minimum us 121 and maximum is 169
Work Step by Step
Divide the data into intervals. Subtract the minimum from the maximum and divide the number by the number of intervals you need. In this case 5. You get 9.6. To have consistent data sets, include 170, so that you can make the intervals have 10 numbers in each. The data will therefore be 121-130, 130-141, and so on until you stop at 170.