1.) Calculate Q1 and Q3 for the following data:
X: 10 15 20 25 30 35 40
F : 2 6 8 7 5 10 9
2.) The mean wage of 20 male workers is 50 and that of female worker is 45.Find the combined mean.
3.) Determine the median value of the following series :
Wages : 100-200 200-300 300-400 400-500 500-600
Workers: 8 10 18 12 8
4.) Calculate the Arithematic Mean for the following data using step - deviation method:
Marks : 0-10 10 -20 20 -30 30-40 40 -50 50-60
No. of students: 2 12 14 10 12
5.) Find the missing values when Q3 = 35 N = 50
CL: 0-10 10-20 20-30 30-40 40-50
F: 5 15 - 12 -
2)
3)
3)
| Wages (X) |
Workers (f) |
cf |
| 100 - 200 | 8 | 8 |
| 200 - 300 | 10 | 18 |
| 300 - 400 | 18 | 36 |
| 400 - 500 | 12 | 48 |
| 500 - 600 | 8 | 56 |
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