Question: approximate the sample variance given the following distribution. 0-9. 10, 10-19. 17, 20-29. 12, 30-39. 14, 40-49. 11

approximate the sample variance given the following distribution. 0-9. 10, 10-19. 17, 20-29. 12, 30-39. 14, 40-49. 11

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