For the given 7 values 5, 7, 9, 2, 2, 3, 4 the five year moving averages are

If Paasche's index number is 160 and Laspeyre's index number is 250, then Fisher's index number is :

Using simple average of relatives method, the price index for 2011, taking 2001 as base year, was found to be 127. If $\Sigma p_0 = 263$, then x and y from the following data are :

The increase in the sale of shawls during winters is an example of :

For the given five values, 13, 17, 21, 25, 35, the three years moving averages are:

In the equation of trend line $y_t = a + bx$, a and b represent :

For the data :

The weighted aggregative index number is :