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Calculate the mean-variance and standard deviation

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Reference no: EM132852349

Using the following frequency distribution calculate the mean, variance and standard deviation

class. m. f

0-4. 2 74

5-9. 7 192

10-14 12 280

15-19. 17. 105

20-24. 22. 23

25-29. 27. 6

Reference no: EM132852349

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