 Hi and welcome to the session. Today we will learn about bar graph. Bars of uniform width can be drawn horizontally or vertically equal spacing between them and then the length of each bar represents the given number. Such method of representing data is called a bar diagram of bar graph. For example, here is a bar graph where these are the bars with equal spacing between them and in this the length of the bars represents number of cars sold on these particular days. And here we are given the scale as one unit length is equal to five cars. So this is one unit length and this represents five cars. Now let's see the interpretation of a bar graph. We are supposed to answer few questions related to this bar graph by just looking at this bar graph. Then we can easily do that. For example, if we want to find out the day on which maximum number of cars are sold, then in the given bar graph we will look for the longest bar. So here this is the longest bar that means on Friday maximum number of cars are sold. So here our answer is now we want to find out the day on which minimum number of cars are sold. Now in this bar graph let's find out the smallest bar that is this one. So that means on Tuesday minimum number of cars are sold. So here we have Tuesday. Now we want to find out the number of cars sold on Saturday. So here in the bar graph the bar of Saturday corresponds to the number 25. So that means 25 cars are sold on Saturday. So our answer for this is 25 cars. So this is how we can interpret a bar graph. Now let's learn how to draw a bar graph. Let us understand this with the help of example. Here we are given the data of marks obtained by Rohan in four subjects that is English, Hindi, Math and Science. So let us draw the bar graph for this data. First of all let us draw a horizontal line and a vertical line like this. Now on horizontal line we will draw the bars representing each subject and on vertical line we will write the numerals representing marks. Now we need to decide the scale. So let's say one unit length represents ten marks. Now let us write the numerals on vertical line like this. Marks obtained by Rohan in English are forty. So let us draw the bar for English like this. Now marks obtained in Hindi are twenty five. So here we will draw the bar for Hindi. Now here is twenty and here is thirty. So twenty five will lie in between twenty and thirty. So this is the bar for Hindi representing twenty five marks. For maths marks obtained are fifty. So now we will draw the bar for maths. So this is the bar for maths representing fifty marks. And lastly marks obtained in science are thirty five. So this is the bar for science representing thirty five marks. So I hope you must have found it easy to draw the bar graph. With this we finish this session. Hope you must have understood all the concepts. Goodbye, take care and keep smiling.