Electricity energy consumption is the form of energy consumption that uses electric energy. Global electricity consumption continues to increase faster than world population, leading to an increase in the average amount of electricity consumed per person (per capita electricity consumption).
A survey is conducted for 56 families of a Colony A. The following tables gives the weekly consumption of electricity of these families.
Weekly consumption
(in units) | \(0-10\) | \(10-20\) | \(20-30\) | \(30-40\) | \(40-50\) | \(50-60\) |
| No. of families | 16 | 12 | 18 | 6 | 4 | 0 |
The similar survey is conducted for 80 families of Colony B and the data is recorded as below:
Weekly consumption
(in units) | \(0-10\) | \(10-20\) | \(20-30\) | \(30-40\) | \(40-50\) | \(50-60\) |
| No. of families | 0 | 5 | 10 | 20 | 40 | 5 |