Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Mathematics Statistics Measures of Central Tendency
If the median of the distribution given below is 28.5,
| Class | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | Total |
| Freq. | 5 | a | 20 | 15 | b | 5 | 60 |
then the missing value of a and b are respectively:
1
3, 7
2
2, 5
3
8, 7
4
8, 5