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Homework answers / question archive / 1) Consider the following frequency distribution

1) Consider the following frequency distribution.

classes 5410-5414 5415-5419 5420-5424 5425-2549 5430-5434

frequency 7 11 14 13 5

Find

i. Mean, mode and the median

ii. lower and upper quartile

iii. variance and standard deviation

iv. Estimate the mean and standard deviation using coding formula.

2. The following measures were computed for a frequency distribution :

Mean = 50, coefficient of Variation = 35% and Karl Pearson's Coefficient of Skewness

SK = - 0.25 p.

Compute Standard Deviation, Mode and Median of the distribution.

3. The following figures relate to the size of capital of 285 companies :

Capital (in Ks lacs.) 1-5 6-10 11-15 16-20 21-25 26-30 31-35

No. of companies 20. 27 29 38 48 53 70

Compute the Bowley's and Kelly's coefficients of skewness and interpret the results.