Age (yr) of Best Actress When Oscar was won Frequency 20-29 29 30-39 34 Find the mean of the data summarized in the frequency distribution and 40-49 14 compare the computed mean to the actual means u = 36.2 years 50-59 60-69 Find the variance, mode and standard deviation. 70-79 1 80-89 ). Age (yr) of Best Actress When Oscar Was Won Frequency 20-29 29 30-39 34 40–49 14 THERE ARE 12 PRACTICE WORKSHEETS 50-59 3 60-69 70–79 80-89 1

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