Concept of Graph

The representation of data with bars of uniform width is called ______.

Study the double bar graph given below and answer the questions that follow:

1. What information is compared in the above given double bar graph?
2. Calculate the ratio of minimum temperatures in the year 2008 to the year 2009 for the month of November.
3. For how many months was the minimum temperature in the year 2008 greater than that of year 2009? Name those months.
4. Find the average minimum temperature for the year 2008 for the four months.
5. In which month is the variation in the two temperatures maximum?

Observe the given data:

1. Draw a bar graph to represent the above given information.
2. On which day of the week was the sales maximum?
3. Find the total sales during the week.
4. Find the ratio of the minimum sale to the maximum sale.
5. Calculate the average sale during the week.
6. On how many days of the week was the sale above the average sales?

Study the bar graph given below and answer the questions that follow.

1. What information does the above bar graph represent?
2. In which year was production the least?
3. After which year was the maximum rise in the production?
4. Find the average production of rice during the 5 years.
5. Find difference of rice production between years 2006 and 2008.

To represent the population of different towns using bar graph, it is convenient to take one unit length to represent one person.

Study the double bar graphs given below and answer the following questions:

1. Which sport is liked the most by Class VIII students?
2. How many students of Class VII like Hockey and Tennis in all?
3. How many students are there in Class VII?
4. For which sport is the number of students of Class VII less than that of Class VIII?
5. For how many sports students of Class VIII are less than Class VII?
6. Find the ratio of students who like Badminton in Class VII to students who like Tennis in Class VIII.

The table below compares the population (in hundreds) of 4 towns over two years:

Study the table and answer the following questions:

1. Draw a double bar graph using appropriate scale to depict the above information.
2. In which town was the population growth maximum?
3. In which town was the population growth least?

The following table shows the number of Buses and Trucks in nearest lakh units. Draw percentage bar-diagram. (Approximate the percentages to the nearest integer)