Question

find the mean of the data summarized in the given frequency distribution. Compare and computed mean to the actual mean of 51.9 miles per hour:

speed (miles per hr) Frequency

42-45 21

46.49 12

50-53 7

54-57 4

58-61 2

The mean of the frequency is _____

What is the relationship between the computed mean and the actual mean?

Step 1

The formula for calculating the mean is:

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