- 10 Marks
QTB – May 2015 – L1 – SB – Q5b – Data Collection Analysis
This question requires calculating the lower and upper quartiles for the age distribution of licensed automobile drivers using cumulative frequency.
Question
The following data gives the distribution by age of licensed automobile drivers in a city in the year 2011:
| Age Group | Number of Drivers (in thousands) |
|---|---|
| 14 – 19 | 5 |
| 20 – 25 | 48 |
| 26 – 31 | 124 |
| 32 – 37 | 205 |
| 38 – 43 | 86 |
| 44 – 49 | 72 |
| 50 – 55 | 53 |
| 56 – 61 | 13 |
You are required to calculate the lower quartile (Q1) and upper quartile (Q3) of the age of the drivers.
Find Related Questions by Tags, levels, etc.
- Tags: Drivers' Age, Frequency Distribution, Quartiles, Statistics
- Level: Level 1
- Topic: Data Collection Analysis
- Series: MAY 2015