Mathematics
A life insurance agent found the following data for distribution of ages of 100 policy holders:
| Age in years | Policy holders (frequency) | Cumulative frequency |
|---|---|---|
| 20-25 | 2 | 2 |
| 25-30 | 4 | 6 |
| 30-35 | 12 | 18 |
| 35-40 | 20 | 38 |
| 40-45 | 28 | 66 |
| 45-50 | 22 | 88 |
| 50-55 | 8 | 96 |
| 55-60 | 4 | 100 |
On a graph sheet draw an ogive using the given data. Take 2 cm = 5 years along one axis and 2 cm = 10 policy holders along the other axis. Use your graph to find:
(a) The median age.
(b) Number of policy holders whose age is above 52 years.
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