Use the given frequency distribution to find the Class width, Class midpoints, Class boundaries

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Question 15.

Use the given frequency distribution to find the

Temperature(°F)Frequency
45-481
49-523
53-565
57-6011
61-647
65-687
69-721
  1. Class width
  2. Class midpoints
  3. Class boundaries

Answer – Class Width          = (48-45) = 3

                  Class midpoints   = (48+45)/2=93/2=46.5

                  Class boundaries =

44.5 – 48.5
48.5 – 52.5
52.5 – 56.5
56.5 – 60.5
60.5 – 64.5
64.5 – 68.5
68.5 – 72.5
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