Q4 of 108 Page 32

Calculate coefficient of variation from the following data :

Given, The data is given in table

To Find: Find the standard deviation of the frequency


Explanation:



Now, N=120,


Mean






Variance = 1076332.64


Standard Deviation


SD = 1037.47


Coefficients variation =


Cv=32.08


Hence, The coefficient variation is 332.08


More from this chapter

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2

The means and standard deviations of heights and weights of 50 students in a class are as follows:


Which shows more variability, heights or weights?

 3

The coefficient of variation of two distribution are 60% and 70%, and their standard deviations are 21 and 16 respectively. What is their arithmetic means?

 5

An analysis of the weekly wages paid to workers in two firms A and B, belonging to the same industry gives the following results:


(i) Which firm A or B pays out the larger amount as weekly wages?


(ii) Which firm A or B has greater variability in individual wages?

 6

The following are some particulars of the distribution of weights of boys and girls in a class:


Which of the distributions is more variable?