thirty plasma tvs were tested, and the number of watts per hour they used recorded. Complete the cumulative frequency column in the partially constructed frequency distribution (provided in the answer box below) for the data:
Class limits Frequency cumulative frequency
427-445 4
446-464 8
465-483 2
484-502 6
503-521 10
Solution,
| Class limits | Frequency | Cumulative frequency |
| 427 - 445 | 4 | 4 |
| 446 - 464 | 8 | 12 |
| 465 - 483 | 2 | 14 |
| 484 - 502 | 6 | 20 |
| 503 - 521 | 10 | 30 |
thirty plasma tvs were tested, and the number of watts per hour they used recorded. Complete...