Question

if x and y are related by y =2x+5 and the sd and AM of x is known to be 5 and 10 respectively ,then the cofficient of variation is ​

Answer 1

Answer:

CV of x = 50 %

CV of y = 40%

Step-by-step explanation:

SD = standard deviation AM = arithmetic mean or simply mean

SD of x = 5

AM of x = 10

Coefficient of Variation of x = (Standard deviation /Mean) * 100 %

= (5 /10) * 100

= 50 %

y = 2x + 5

AM of x = 10

AM of y = 2*10 + 5 = 25

SD of x = 5

SD of y = 2*5 = 10

Coefficient of Variation of y = (Standard deviation /Mean) * 100 %

= (10 /25) * 100

= 40 %

Answer 2

Step-by-step explanation:

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