Midpoint (Midvalue) of the class $15-30$ is ........
- A$20$
- B$17.5$
- C$22$
- D$22.5$
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For a given frequency distribution,$\bar{x} = 19.7$,$A = 20$,and $n = 50$. Then,$\Sigma f_{i} d_{i} = \ldots$
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View SolutionFor a given frequency distribution,$n=100$ and $\Sigma f_{i} x_{i}=245$. Then,$\bar{x}=\ldots \ldots \ldots \ldots$
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View SolutionFind the mode of the following frequency distribution:
Class $20-30$ $30-40$ $40-50$ $50-60$ $60-70$ $70-80$ $80-90$ Frequency $8$ $12$ $27$ $43$ $55$ $37$ $18$
| Class | $20-30$ | $30-40$ | $40-50$ | $50-60$ | $60-70$ | $70-80$ | $80-90$ |
| Frequency | $8$ | $12$ | $27$ | $43$ | $55$ | $37$ | $18$ |
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View SolutionConsider the following frequency distribution:
Class $0-5$ $6-11$ $12-17$ $18-23$ $24-29$ Frequency $13$ $10$ $15$ $8$ $11$
The upper limit of the median class is
| Class | $0-5$ | $6-11$ | $12-17$ | $18-23$ | $24-29$ |
| Frequency | $13$ | $10$ | $15$ | $8$ | $11$ |
The upper limit of the median class is
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View SolutionThe excluding type of class $30-45$ does not include .........
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