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School is organized slogan competition on …

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School is organized slogan competition on “SAVE ENVIRONMENT” for all classes. The following frequency distribution gives the number of slogans submitted by all the students: No. of slogans 11-15 16-20 21-25 26-30 31-35 36-40 41-45 46-50 No. of Students 2 3 6 7 14 12 4 2 Find the mean, variance and standard deviation.
  • 1 answers

Tushar Sindhu??? 5 years, 9 months ago

Mean 32 Standard deviation 8.19 Variance 67
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