The electricity bills (in rupees) of 25 houses of a certain locality for a month are given below:
324, 700, 617, 400, 356, 365, 435, 506, 548, 736, 780, 378, 570, 685, 312, 630, 584, 674, 754, 776, 596, 745, 565, 763, 472.
Arrange the above data in increasing order and form a frequency table using equal class intervals, starting from 300-400, where 400 is not included.
The frequency distribution table is given as:
Electricity Bills | Tally Marks | Number of Houses (Frequency) |
300 – 400 | 5 | |
400 – 500 | III | 3 |
500 – 600 | 6 | |
600 – 700 | IIII | 4 |
700 – 800 | 7 | |
Total | 25 |