Weighted Mean. In Exercises, find the mean of the data summarized in the frequency table by using the middle of each bin and the frequency for each bin. Also, compare the computed means to these the actual means obtained using the original list of data values: the frequency for each bin. Also, compare the computed means to these the actual means obtained using the original list of data values:  36.2 years

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Age (years) of female actor when Oscar was won 20-29 30-39 40-49 50-59 60-69 70-79 80-89 Frequency 31 34 14 2611