CBSE Class 9 Answered
In
a study of diabetic patients in a village, the following observations were
noted.
Age
in years
10-20
20-30
30-40
40-50
50-60
60-70
Number
of patients
2
5
12
19
9
4
Represent
the above data by a frequency polygon.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
The frequency distribution table with class marks is given below:
|
Class- intervals |
Class marks |
Frequency |
|
0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 |
5 15 25 35 45 55 65 75 |
0 2 5 12 19 9 4 0 |
Plot points (5,0), (15,2)………(65, 4) and (75, 0) to get the frequency polygon as follows:
Answered by | 04 Jun, 2014, 03:23: PM
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