2016 · Q87
For x > 0 , if a variable takes discrete values x+4,x-3.5,x-2.5,x-3,x-2,x+0.5,x-0.5,x+5, then what is the median ?
Elementary MathematicsStatistics
- Ax-1.25
- Bx-0.5
- Cx+0.5
- Dx+1.25
Explanation
Sorted, the values are x−3.5, x−3, x−2.5, x−2, x−0.5, x+0.5, x+4, x+5. The median is the mean of the 4th and 5th: ((x−2)+(x−0.5))/2 = x−1.25 (option A).