Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Elementary Statistics
Find the arithmetic mean of the following data.
| x | 5 | 10 | 15 | 20 | 25 | 30 |
| f | 3 | 5 | 6 | 2 | 1 | 3 |
1
13.5
2
15.5
3
12.5
4
More than one of the above
5
None of the above