Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Mathematics Statistics Measures of Central Tendency
If the mean of observations x, x + 3, x + 5, x + 7 and x + 10 is 11, then the mean of last three observations is:
1
\(12{2\over3}\)
2
\(12{1\over3}\)
3
\(14{2\over3}\)
4
\(13{1\over3}\)
5
None of the above