Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Elementary Statistics
Given below is the observed data of the age of various boys. Study the table carefully and answer the question that follows.
| Age in years | Number of children (Boys) |
| 5 | 8 |
| 6 | 3 |
| 7 | 7 |
| 8 | 2 |
| 9 | 20 |
Calculate the mean age of the boys.
1
6.57
2
9.57
3
7.57
4
More than one of the above
5
None of the above