Question
How is value of correlation interpreted?
|
S. No.
|
Degrees
|
Positive
|
Nagative
|
|
1.
|
Abesence of correlation.
|
Zero
|
0
|
|
2.
|
Perfact correlation.
|
+ 1
|
- 1
|
|
3.
|
High degree correlation.
|
+ 0.75 to + 1
|
- 0.75 to - 1
|
|
4.
|
Moderate degree correlation.
|
+ 0.25 to + 0.75
|
- 0.25 to - 0.75
|
|
5.
|
Low degree correlation.
|
0 to 0.25
|
0 to -.0.25
|
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|
Class Interval
|
Frequency (f)
|
|
13-25
|
6
|
|
25-37
|
11
|
|
37-49
|
23
|
|
49-61
|
7
|
|
61-73
|
3
|
|
Total
|
50
|
|
Marks
|
0-10
|
10-20
|
20-30
|
30-40
|
40-50
|
50-60
|
|
No. of Students
|
5
|
12
|
15
|
22
|
14
|
4
|
| Income: | 100 | 200 | 400 | 500 | 800 |
| No. of Persons: | 80 | 70 | 50 | 30 | 20 |
|
Series1
|
Series2
|
|
|
2
|
Marks
|
No. of student
|
|
8
|
5-10
|
02
|
|
6
|
10-20
|
03
|
|
4
|
20-45
|
01
|
|
10
|
45-60
|
06
|
|
15
|
|
|
|
Year
|
Arts
|
Commerce
|
Science
|
|
1990
|
100
|
300
|
600
|
|
1991
|
150
|
450
|
600
|
|
1992
|
130
|
550
|
820
|
|
Cuntry
|
Export (in %)
|
|
USA
|
25
|
|
Japan
|
15
|
|
UK
|
30
|
|
China
|
20
|
|
Others
|
10
|