2018 · Q57
The median of 19 observations is 30. Two more observations are made and the values of these are 8 and 32. What is the median of the 21 observations ?
Elementary MathematicsStatistics
- A32
- B30
- C20
- DCannot be determined due to insufficient data
Explanation
The median of the 19 observations is the 10th value, 30. Adding 8 (below the median) and 32 (above it) gives 21 observations whose 11th value is still 30. Hence option B.