The coefficient of variation cannot be meaningfully used to compare the variability of two or more sets of data, when
A. The standard deviation is zero for one or more sets of data
B. The standard deviation is 1 for one or more sets of data
C. The mean is zero for one or more sets of data
D. The mean is 1 for one or more sets of data
Answer: –
C. The mean is zero for one or more sets of data
- Index number is a special type of ———-
- A period for which index number is determined is called as ——
- Index number calculated by Fisher’s formula is ideal because it satisfy:
- In the regression equation Y = 75.65 + 0.50X, the intercept is
- The coefficient of determination must be
- In the regression equation Y = a+bX, the Y is called:
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