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how to solve thos questions following table shows the results of a research regarding the frequency of the dents in using internet services in a

how to solve thos questions

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following table shows the results of a research regarding the frequency of the dents in using internet services in a week. Frequency Number of students 2 2 30 42 19 NON Find the : i) mean, vi) variance, ii ) median, vil) Pearson's coefficient of skewness mode, and hence identify the shape of the iv) lower quartile, distribution

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