Frequency curve is drawn from frequency polygon by smoothening the vertices.

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A survey regarding height (in $\mathrm{cm}$) of $60$ boys belonging to Class $10$ of a school was conducted. The following data was recorded:

Taking $2 \mathrm{cm}=$height of $10 \mathrm{cm}$ along one axis and $2 \mathrm{cm}=10$ boys along the other axis draw an ogive of the above distribution. Use the graph to estimate the following:

The median

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A survey regarding height (in $\mathrm{cm}$) of $60$ boys belonging to Class $10$ of a school was conducted. The following data was recorded:

Taking $2 \mathrm{cm}=$height of $10 \mathrm{cm}$ along one axis and $2 \mathrm{cm}=10$ boys along the other axis draw an ogive of the above distribution. Use the graph to estimate the following:

If above $158 \mathrm{cm}$ is considered as the tall boys of the class. Find the number of boys in the class who are tall.

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The marks obtained by $120$ students in an English test are given below

Draw the ogive and hence, estimate the median marks.

During the medical check-up of $35$ students of a class, their weights were recorded as follows. Draw a less than type of ogive for the given data:

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The marks obtained by 120 students in an English test are given below

Draw the ogive and hence, estimate the number of students who did not pass the test if the pass percentage was 50.

State the type for curve A and curve $B$

$40$ students enter for a game of shot-put competition. The distance thrown (in metres) is recorded below:

Use a graph paper to draw an ogive for the above distribution. Use a scale of $2 \mathrm{cm}=1 \mathrm{m}$ on one axis and $2 \mathrm{cm}=5$ students on the other axis. Hence using your graph find the median.

In " less than type ogive'', the $x-$axis represents

Use graph paper for the question.

A survey regarding height (in $\mathrm{cm}$) of $60$ boys belonging to class $10$ of a school was conducted. The following data was recorded:

Taking $2 \mathrm{cm}$$=$height of $10 \mathrm{cm}$ along one axis and $2 \mathrm{cm}=10$ boys along the other axis draw an ogive of the above distribution. Use the graph to estimate the lower quartile.

Use graph paper for this question. The marks obtained by $120$ students in an English test are given below:

Draw the ogive and hence, estimate the upper quartile marks.

A survey regarding the heights (in cm) of $51$ girls of Class X of a school was conducted and the following data as obtained"

Find the median height.

The marks obtained by $100$ students of a class in an examination are given below.

Draw a 'less than' type cumulative frequency curves (ogive). Hence find the median.

An insurance policy agent found the following data for distribution of ages of $35$ policy holders. Draw a ''less than type'' (below) of ogive for the given data:

The following distribution gives the daily income of $50$ workers of a factory.

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

Write less than cumulative frequency and greater than cumulative frequency table for the following data.

$40$ students enter for a game of the shot-put competition. The distance thrown (in meters) is recorded below,

Use graph paper to draw an ogive for the above distribution.

Use the scale of $2 cm =1 m$ on one axis and $2cm = 5$ students on the other axis.

Hence using your graph find the number of students who cover a distance which is above $16\frac{1}{2} m$. 

The following table gives production yield per hectare of wheat of $100$ farms of a village

Change the distribution to a 'more than type' distribution and draw its ogive.

The following distribution gives the daily income of $50$ workers of a factory :

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