Q. 85.0( 1 Vote )

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Answer :

Given, The data is given in the table.

To find: Check which group is more variable G1 and G2


Explanation: Let’s find the coefficient of the variable for group G1



Here, n=150 a= 45


Mean






Variance = 227.84


Standard Deviation


Standard Deviation


The coefficient of variation =


So, Coefficient of variation =


Cv = 33.83


Now find the coefficient of variable for group G2



Here, n=150 a= 45


Mean






Variance = 243.84


Standard Deviation


Standard Deviation


The coefficient of variation =


So, Coefficient of variation =


Cv = 35.02


Since, G2 has a high coefficient of variance,


Hence, Group G2 is more variable.


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