Question 47
Measures of Central TendencyFind the median of the observation in the table above
- A.11.5
- B.12.5
- C.14.0
- D.14.5
Show the answer and explanation
Answer: D (14.5)
Explanation
There are 20 observations, so the median is the 10th. Cumulative frequencies are 2, 6, 11, … so it is in class 11–15. Median = 10.5 + (10 − 6)/5 × 5 = 14.5.