Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Elementary Statistics
Let x be the median of the data : 5, 3, 2, 9, 13, 11, 17, 15, 21 and y be the median of the data obtained by replacing 3 and 21 by 16 and 14, respectively in the above data. What is the value of (2x - y) ?
1
7
2
8
3
9
4
More than one of the above
5
None of the above