The monthly consumption of electricity -in units- of some families of a locality is given in the following frequency distribution- nbsp-Monthly consumption -in units-140 minus-160-160 minus-180-180 minus-200-200 minus-220-220 minus-240-240 minus-260-260 minus-280-Number of families-3-8-15-40-50-30-10-Prepare a -39-more than type -39- ogive for the following frequency distribution- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- -CBSE 2014-

The frequency distribution table of more than type is as follows: nbsp; Height nbsp;(in cm) nbsp;(lower class limits) Cumulative frequency (cf) ...

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Standard X

Mathematics

Cumulative Frequency Distribution of More Than Type

The monthly c...

Question

The monthly consumption of electricity (in units) of some families of a locality is given in the following frequency distribution:

Monthly consumption (in units) 140−160 160−180 180−200 200−220 220−240 240−260 260−280

Number of families 3 8 15 40 50 30 10

Prepare a 'more than type' ogive for the following frequency distribution. [CBSE 2014]

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Solution

The frequency distribution table of more than type is as follows:

Height (in cm) (lower class limits) Cumulative frequency (cf)

More than 140 3 + 153 = 156

More than 160 8 + 145 = 153

More than 180 15 + 130 = 145

More than 200 40 + 90 = 130

More than 220 50 + 40 = 90

More than 240 30 + 10 = 40

More than 260 10

Taking the lower class limits on x−axis and their respective cumulative frequencies on y−axis, its ogive can be obtained as follows:

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Similar questions

Q. The monthly consumption of electricity (in units) of some families of a locality is given in the following frequency distribution:

Monthly consumption (in units)	140−160	160−180	180−200	200−220	220−240	240−260	260−280
Number of families	3	8	15	40	50	30	10

Prepare a 'more than type' ogive for the following frequency distribution. [CBSE 2014]

The monthly consumption of electricity (in units) of some families of a locality is given in the follwoing frequency distribution.

$\begin{matrix} M o n t h l y c o n s u m p t i o n (i n u n i t s) & 140 - 160 & 160 - 180 & 180 - 200 & 200 - 240 & 220 - 240 & 240 - 260 & 260 - 280 N u m b e r o f f a m i l i e s & 3 & 8 & 15 & 40 & 50 & 30 & 10 \end{matrix}$

Prepare a 'more than type'ogive for the given frequency distribution:

Q. The following distribution gives the daily income of

50

workers of a factory:

Daily Income(In)	$100 - 120$	$120 - 140$	$140 - 160$	$160 - 180$	$180 - 200$
Number of workers	$12$	$14$	$8$	$6$	$10$

Convert the distribution to a less than type cumulative frequency distribution and draw its ogive.

Q. The daily expenditure of

100

families are given below. Calculate

f_{1}

and

f_{2}

the mean daily expenditure is

R s .188

Expenditure (in $R s$ )	$140 - 160$	$160 - 180$	$180 - 200$	$200 - 220$	$220 - 240$
Number of families	$5$	$25$	$f_{1}$	$f_{2}$	$5$

Q. The following frequency distribution gives the monthly consumption of electricity of

68

consumers of a locality. Find the median, mean and mode of the data and compare them.

Monthly consumption (in units)	Number of consumers
65-85	4
85-105	5
105-125	13
125-145	20
145-165	14
165-185	8
185-205	4

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Height (in cm) (lower class limits)	Cumulative frequency (cf)
More than 140	3 + 153 = 156
More than 160	8 + 145 = 153
More than 180	15 + 130 = 145
More than 200	40 + 90 = 130
More than 220	50 + 40 = 90
More than 240	30 + 10 = 40
More than 260	10