Weighted Aggregative Price Index

Q. Find Karl pearson's correlation coefficient for the following data.

X	-3	-2	-1	$0$	1	2	3
Y	9	4	1	$0$	1	4	9

1. $0$
2. $-1$
3. $1$
4. $0.5$

Q. Calculate the Pearson's Coefficient of correlation between X and Y.

X	35	34	40	43	56	20	38
Y	32	30	31	32	53	20	33

1. 0.12
2. 0.93
3. 0.71
4. 0.56

Q.

Find the fourth proportion in each of the following:

$54,76,108$