For drawing a frequency polygon of a continuous frequency distribution,we plot the points whose ordinates are the frequencies of the respective classes and abscissae are respectively:
- Aclass marks of the classes
- Blower limits of the classes
- Cupper limits of the classes
- Dupper limits of preceding classes
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Similar Questions
The scores (out of $100$) obtained by $33$ students in a mathematics test are as follows:
$69, 48, 84, 58, 48, 73, 83, 48, 66, 58, 84$
$66, 64, 71, 64, 66, 69, 66, 83, 66, 69, 71$
$81, 71, 73, 69, 66, 66, 64, 58, 64, 69, 69$
Represent this data in the form of a frequency distribution table.
$69, 48, 84, 58, 48, 73, 83, 48, 66, 58, 84$
$66, 64, 71, 64, 66, 69, 66, 83, 66, 69, 71$
$81, 71, 73, 69, 66, 66, 64, 58, 64, 69, 69$
Represent this data in the form of a frequency distribution table.
Medium
View SolutionThe points scored by a basketball team in a series of matches are as follows:
$17, 2, 7, 27, 25, 5, 14, 18, 10, 24, 48, 10, 8, 7, 10, 28$
Find the median and mode for the data.
$17, 2, 7, 27, 25, 5, 14, 18, 10, 24, 48, 10, 8, 7, 10, 28$
Find the median and mode for the data.
Medium
View SolutionDraw a histogram for the data given below:
Class $0-6$ $6-12$ $12-18$ $18-24$ $24-30$ $30-36$ Frequency $7$ $10$ $12$ $15$ $10$ $6$
| Class | $0-6$ | $6-12$ | $12-18$ | $18-24$ | $24-30$ | $30-36$ |
| Frequency | $7$ | $10$ | $12$ | $15$ | $10$ | $6$ |
Medium
View SolutionBelow is the distribution of "more than" type of marks obtained by $50$ students in a $100$ marks examination. Prepare the grouped frequency distribution from that.
Obtained marks No. of Students $0$ or more than $0$ $50$ $20$ or more than $20$ $48$ $40$ or more than $40$ $40$ $60$ or more than $60$ $31$ $80$ or more than $80$ $10$
| Obtained marks | No. of Students |
| $0$ or more than $0$ | $50$ |
| $20$ or more than $20$ | $48$ |
| $40$ or more than $40$ | $40$ |
| $60$ or more than $60$ | $31$ |
| $80$ or more than $80$ | $10$ |
Medium
View SolutionFind the number of observations,if the sum of some observations is $975$ and their mean is $32.5$.
Easy
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