PDF chapter test TRY NOW
Answer variants:
61
20
\(\text{Less than }\)\(40\)
\(\text{Less than }\)\(60\)
56
24
\(\text{Less than }\)\(30\)
\(\text{Less than }\)\(50\)
33
50
\(\text{Less than }\)\(70\)
\(\text{Less than }\)\(80\)
Construct a cumulative frequency distribution of less than type for the following data.
| Class interval | Frequency |
| Below 30 | 20 |
| 30 \(-\) 40 | 4 |
| 40 \(-\) 50 | 9 |
| 50 \(-\) 60 | 17 |
| 60 \(-\) 70 | 6 |
| 70 \(-\) 80 | 5 |
Answer:
| Class interval | Frequency |
