Consider the data: Class 65-85 85-10 | vedclass

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Question

(C) To find the median class and modal class,we first calculate the cumulative frequency $(cf)$:						Class			Frequency $(f)$			Cumulative Frequency $

Vedclass · Accepted Answer

$20$

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(C) To find the median class and modal class,we first calculate the cumulative frequency $(cf)$:						Class			Frequency $(f)$			Cumulative Frequency $(cf)$							$65-85$			$4$			$4$							$85-105$			$5$			$9$							$105-125$			$13$			$22$							$125-145$			$20$			$42$							$145-165$			$14$			$56$							$165-185$			$7$			$63$							$185-205$			$4$			$67$			Total frequency $N = 67$. Thus,$\frac{N}{2} = \frac{67}{2} = 33.5$.The cumulative frequency just greater than $33.5$ is $42$,which corresponds to the class interval $125-145$. Therefore,the median class is $125-145$. The upper limit of the median class is $145$.The highest frequency is $20$,which corresponds to the class interval $125-145$. Therefore,the modal class is $125-145$. The lower limit of the modal class is $125$.Required difference = (Upper limit of median class) - (Lower limit of modal class) = $145 - 125 = 20$.

Marks	Below $20$	Below $40$	Below $60$	Below $80$	Below $100$
Number of students	$17$	$22$	$29$	$37$	$50$

Consider the data:

Class $65-85$ $85-105$ $105-125$ $125-145$ $145-165$ $165-185$ $185-205$

Frequency $4$ $5$ $13$ $20$ $14$ $7$ $4$

The difference between the upper limit of the median class and the lower limit of the modal class is:

Similar Questions

$\frac{Z-M}{M-\bar{x}}=\ldots \ldots \ldots \ldots$

For some given data,if $M + \bar{x} = 165$ and $M - \bar{x} = 1$,then $Z = \dots$

Given below is a cumulative frequency distribution showing the marks secured by $50$ students of a class:

Marks Below $20$ Below $40$ Below $60$ Below $80$ Below $100$

Number of students $17$ $22$ $29$ $37$ $50$

Form the frequency distribution table for the data.

If $Z=12$ and $M=16,$ then $\bar{x}=$ ............

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Class	$65-85$	$85-105$	$105-125$	$125-145$	$145-165$	$165-185$	$185-205$
Frequency	$4$	$5$	$13$	$20$	$14$	$7$	$4$

Consider the data: Class $65-85$ $85-105$ $105-125$ $125-145$ $145-165$ $165-185$ $185-205$ Frequency $4$ $5$ $13$ $20$ $14$ $7$ $4$ The difference between the upper limit of the median class and the lower limit of the modal class is: