2014 · Q100
Ten observations 6, 14, 15, 17, x + 1, 2x − 13, 30, 32, 34, 43 are written in ascending order. The median of the data is 24. What is the value of x?
Elementary MathematicsStatistics
- A15
- B18
- C20
- D24
Explanation
Median = ((x + 1) + (2x − 13))/2 = (3x − 12)/2 = 24, so x = 20.