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The following relative frequency distribution was constructed from a population of 550. Calculate the population mean,...

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Basic Math

The following relative frequency distribution was constructedfrom a population of 550. Calculate the population mean, thepopulation variance, and the population standard deviation.(Negative values should be indicated by a minus sign. Roundintermediate calculations to at least 4 decimal places and finalanswers to 2 decimal places.)

ClassRelativeFrequency
?20 up to ?100.30
?10 up to 00.22
0 up to 100.32
10 up to 200.16


Population mean-1.60 (correct)

Population variance 115.02 (Its marking this one wrong)

Population standard deviation 10.72 (correct)

Answer & Explanation Solved by verified expert
4.1 Ratings (697 Votes)
SolutionClassFrequancy f Mid Value x fxf    See Answer
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