Question
Find average number of boys in school – C, D and E.
Study the pie chart given below and answer the following questions. Pie charts shows the percentage distribution of total students in 5 different schools (A, B, C, D nad E) and percentage distribution of total boys in these 5 schools in year 2019.Solution
Required average = (1/3) × [(30+16+17)/100] × 2800 = 588
Approximately, the coefficient of variation for the given data where Pearson's second measure of skewness = 0.42, arithmetic mean- 86 and median 80, is:


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