Question
Calculate Median of the following series:
|
Wages Rate (in Rs.) |
No. of Workers |
|
Less than 10 Less than 20 Less than 30 Less than 40 Less than 50 Less than 60 Less than 70 Less than 80 |
15 35 60 84 96 127 198 250 |
Solution
Here, we have been given cumulative frequency of "less than". This frequency has been converted into simple frequency as under for calculating median.
Calculation of Median:
|
Wages (Rs.) |
Cumulative frequency |
Frequency |
|
0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 |
15 35 60 84 96 127 198 250 |
15-0= 15 35-15 = 20 60-35 = 25 84 - 60= 24 96 - 84 = 12 127-96 = 31 198-127 = 71 250-198 = 52 |
