Mathematics
Construct a frequency table from the following cumulative frequency table :
| Class interval | Cumulative frequency |
|---|---|
| 1-10 | 7 |
| 11-20 | 15 |
| 21-30 | 30 |
| 31-40 | 42 |
| 41-50 | 60 |
| 51-60 | 75 |
Related Questions
In the given figure, O is the centre of the given circle. AB is a side of a square, BC is a side of regular pentagon and CD is a side of regular hexagon. Find :
(i) ∠AOB
(ii) ∠AOC
(iii) ∠AOD
(iv) ∠BCD
Construct a cumulative frequency distribution table from the following frequency table :
C.I. Frequency 0-12 12 12-24 16 24-36 15 36-48 10 48-60 18 For the questions with numbers 92 and 93, given above, draw a :
(i) Histogram
(ii) Frequency polygon
(iii) Frequency polygon using histogram.
Find the mean of the following numbers :
62, 58, 84, 71, 68, 70, 53, 63, 56 and 65.