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

 The ratio of the number of girls studying Arts to the number of girls studying in all other streams is:

Observe the histogram and answer the question given below.

How many girls have a height of $145 \mathrm{cm}$ and more?

The following histogram represents the marks obtained by a set of students in an examination.

Marks obtained by a set of students in an examination.

Study the histogram and answer the following questions.

 If $40$ marks is the minimum for passing, how many students failed the examination?

The number of hours for which students of a particular class watched television during holidays is shown through the given graph.

If the maximum number of students watch the TV for $a-b \mathrm{hours}$, then find the value of $a+b.$

The table shows the daily incomes of $60$ households in a locality.

$\begin{array}{|ll|}\hline \begin{array}{c}\text{ Daily income }\\ \text{ (Rs.) }\end{array}& \begin{array}{l}\text{ Number of }\\ \text{ households }\end{array}\\ 200-250& 3\\ 250-300& 7\\ 300-350& 15\\ 350-400& 20\\ 400-450& 9\\ 450-500& 6\\ \hline\end{array}$

Draw a histogram.

Observe the histogram and answer the question given below.

If we divide the girls into the following three categories, how many would there be in each?

$150 \mathrm{cm}$ and more — Group A

$140 \mathrm{cm}$ to less than $150 \mathrm{cm}$ — Group B

Less than $140 \mathrm{cm}$— Group C

Draw a histogram for the given data, using the frequency table and answer the following question.

The weekly wages (in $₹$) of $30$ workers in a factory are. $830, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808, 812, 840, 885, 835, 835, 836, 878, 840, 868, 890, 806, 840$

Which group has the maximum number of workers?

In a shoe shop the following sizes of shoes are sold in a day. Draw a histogram to represent the data.

Can we use the histogram to show the following data? Give reason.

The number of passengers boarding trains from $7:00 \mathrm{a}.\mathrm{m}.$ to $7:00 \mathrm{p}.\mathrm{m}.$ at a station.

The weights of $45$ children in a class are listed below.

Make a frequency table and draw a histogram.

Observe the histogram and answer the question given below.

What information is being given by the histogram?

The histogram represents the weights (in $\mathrm{kg}$) of people who have enrolled for a fitness programme. Study the histogram and answer the given questions.

What is the class size?

Detail of rainfall in June and July are given in the table below. Draw a histogram.

$\begin{array}{|ll|}\hline \begin{array}{c}\text{ Rainfall }\\ \left(\mathrm{mm}\right)\end{array}& \text{ Days }\\ 10-20& 4\\ 20-30& 6\\ 30-40& 9\\ 40-50& 15\\ 50-60& 10\\ 60-70& 8\\ 70-80& 5\\ 80-90& 3\\ 90-100& 1\\ \hline\end{array}$