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How Do You Find the Range of a Data Set?

Find the range of the following data set: 46.4, 29.3, 48.2, 35.1, 46.4, 39.5, 41.3, 25.2.

Summary

  1. The range of a data set is the difference between the largest and smallest number in that set
  2. Ordering the numbers makes it easier to find the largest and smallest number
  3. Mark off each number as you put them in order to make sure you don't miss anything!
  4. 25.2 is the smallest number
  5. 48.2 is the largest number
  6. To find the range, subtract 25.2 from 48.2
  7. 48.2 minus 25.2 is 23, which is our range!

Notes

    1. The range of a data set is the difference between the largest and smallest number in that set
    1. Once we do that, all we need to do is subtract those two numbers to find the range!
    1. This makes it easier to find the largest and smallest number of a data set
    1. Mark each number as you put it in order
    2. That way no number in the set is missed or counted twice!
    1. Remember, we need the largest and smallest number of the data set in order to find the range
    1. Since the numbers are in order from least to greatest, the smallest number will be the left-most number
    1. Since the numbers are in order from least to greatest, the largest number will be the right-most number
    1. Range = largest number - smallest number
    1. 48.2 - 25.2 = 23
    1. The difference between the largest and smallest number is 23