2015 · Q98
If a variable takes discrete values a+4, a-3.5, a-2.5, a-3, a-2, a+0.5, a+5 and a-0-5 where a > 0, then the median of the data set is
Elementary MathematicsNumber System
- Aa-2.5
- Ba-1.25
- Ca-1.5
- Da-0.75
Explanation
Sorted: a - 3.5, a - 3, a - 2.5, a - 2, a - 0.5, a + 0.5, a + 4, a + 5; median = (a - 2 + a - 0.5)/2 = a - 1.25. Hence option (b).