Midpoint (Midvalue) of the class $15-30$ is ........

  • A
    $20$
  • B
    $17.5$
  • C
    $22$
  • D
    $22.5$

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Similar Questions

For a given frequency distribution,$\bar{x} = 19.7$,$A = 20$,and $n = 50$. Then,$\Sigma f_{i} d_{i} = \ldots$

For a given frequency distribution,$n=100$ and $\Sigma f_{i} x_{i}=245$. Then,$\bar{x}=\ldots \ldots \ldots \ldots$

Find the mode of the following frequency distribution:
Class $20-30$ $30-40$ $40-50$ $50-60$ $60-70$ $70-80$ $80-90$
Frequency $8$ $12$ $27$ $43$ $55$ $37$ $18$

Consider 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

The excluding type of class $30-45$ does not include .........

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