Answer question number 6 (2.6. From the following data Compute the product moment correlation between X and Y.
Arithmetic Mean
Sum of uare of deviations from Arithmetic Mean
X Series
25
136
Y Series
18
138
Summation Of products Of deviations of X and Y series from their respective means = 122
Number Of points Of values = 15
[r = 0891
Q.7. Calculate Karl Pearson's Coefficient Of Correlation on the following data:
18
21 '24 27 3036 39 4248
15
x
41 45
25 25 27 27 31 33 35 41
Y
QS. Calculate Karl Pearson's coefficient Of correlation between the sales and expenses of
following 10 firms:
Firms
(in e '000)
(in e'OOO)
1
50
11
2
50
13
3
55
14
4
60
16
5
65
16
6
65
15
7
65
15
8
60
14
9
60
13
10
50
13