JAMB - Mathematics (2013 - No. 25)
| Age | 20 | 25 | 30 | 35 | 40 | 45 |
| No of people | 3 | 5 | 1 | 1 | 2 | 3 |
Calculate the median age of the frequency distribution in the table above
25
30
35
20
Vysvětlení
N = \(\sum f\) = 15
Hence the median age is the \(\frac{N + 1}{2}\)th age, i.e.
\(\frac{15 + 1}{2}\)th = 8th
From the table, the age that falls on the 8th position when arranged in ascending order is 25years
Hence the median age is the \(\frac{N + 1}{2}\)th age, i.e.
\(\frac{15 + 1}{2}\)th = 8th
From the table, the age that falls on the 8th position when arranged in ascending order is 25years