In the formula Z = l + left( frac{f_{1} - f_{ | vedclass

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(B) In the formula for the mode,$Z = l + \left( \frac{f_{1} - f_{0}}{2f_{1} - f_{0} - f_{2}} ight) 	imes c$,the terms are defined as follows:$l$ is

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frequency of the class preceding the modal class

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(B) In the formula for the mode,$Z = l + \left( \frac{f_{1} - f_{0}}{2f_{1} - f_{0} - f_{2}} ight) 	imes c$,the terms are defined as follows:$l$ is the lower limit of the modal class.$f_{1}$ is the frequency of the modal class.$f_{0}$ is the frequency of the class preceding the modal class.$f_{2}$ is the frequency of the class succeeding the modal class.$c$ is the class size or class length.Therefore,$f_{0}$ represents the frequency of the class preceding the modal class.

Marks	$0-10$	$10-20$	$20-30$	$30-40$	$40-50$	$50-60$	$60-70$	$70-80$
Number of students	$26$	$26$	$x$	$110$	$84$	$y$	$36$	$32$

Marks (out of $90$)	Number of candidates
More than or equal to $80$	$4$
More than or equal to $70$	$6$
More than or equal to $60$	$11$
More than or equal to $50$	$17$
More than or equal to $40$	$23$
More than or equal to $30$	$27$
More than or equal to $20$	$30$
More than or equal to $10$	$32$
More than or equal to $0$	$34$

In the formula $Z = l + \left( \frac{f_{1} - f_{0}}{2f_{1} - f_{0} - f_{2}} \right) \times c$ for the mode,$f_{0} = \ldots \ldots \ldots$

Similar Questions

The frequency distribution of marks obtained by $400$ students is given below. If the mean of the frequency distribution is $41.2$,find the missing frequencies $x$ and $y$.
Marks $0-10$ $10-20$ $20-30$ $30-40$ $40-50$ $50-60$ $60-70$ $70-80$
Number of students $26$ $26$ $x$ $110$ $84$ $y$ $36$ $32$

The formula to find the mean of an ungrouped data is ........

$Z - \bar{x} = \dots \times (M - \bar{x})$

The mode of the observations $4, 5, 6, 3, 4, 3, 3, 2, 3, 5$ is $\ldots \ldots \ldots \ldots .$

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