 Hello and welcome to the session. In this session, we shall learn how to display numerical data in Stanley leaf plot and line plots. First of all, let us discuss what is a Stanley leaf plot. Now, this is a Stanley leaf plot in which data is organized from least to greatest and the Stanley leaf plot is constructed by separating the digits each number into two groups. One as stem which is the digit at 10's place and the other as the leaf which is the digit at the unit's place. Now here, consider the number 10 in which the digit at 10's place is 1 and the digit at unit's place is 0. So in the stem and leaf plot, the number 10 is written like this, that is, n is the stem and 0 is the corresponding leaf with the stem 1 and this represents the number 10. Similarly, here you can see, the number 42 is written like this in the stem and leaf plot. The stem 3 with the leaf 0 represents the number 30, then the stem 2 with the leaf 5 represents the number 25 and so on. So in the stem and leaf plot, the stems are listed vertically and the corresponding are listed horizontally. Now consider the family data. Now for this data, let us construct a Stanley leaf plot. Now we know that the digit at 10's place is termed as stem and the digit at unit's place is termed as leaf. Now in the given data, you can see that the digits at 10's place are 1, 2. Now here for constructing a stem and leaf plot for the given data, we have drawn a vertical line right where we have written stem and on the right hand side we have written leaf and now we will list the stems from the least to the greatest in the stem column that is vertically so we will write 1, 2 and 3. So here we have written the digits at the 10's place from the least to the greatest vertically and then we will write the leaves corresponding to its stem horizontally. Now the corresponding leaves with the stem 1 are 2 and 7. So we write 2 and 7 with the stem 1 where the corresponding leaves with the stem 2 are 0, 2, 3, 5, 2 and 7. Write these leaves from the least to the greatest horizontally with the stem 2. So we have written the corresponding leaves with the stem 2 from the least to the greatest and similarly we will write the corresponding leaf with the stem 3. Lift the stem and leaf plot of the given data so we will write a key here like 1 then a vertical line then 2 which means the number 12. Now there are some points to remember and that are three fact distribution of the histogram. This example which we have discussed earlier if we turn leaf plot vertically then we will obtain a histogram and from this histogram where the distribution is symmetrical. In the digit number like 2, 3 etc. we take the stem as 0 which means in a stem leaf plot the number 2 will be written as 0 then a vertical line and then the number like 432 we take the stem as 33 and leaf as the number 432 will be written as 33 then a vertical line and then 2. And the next point to remember is always write each leaf even if it is repeated. In this example which we have discussed earlier we write twice corresponding to the stem 2 because 22 was twice in the data and now I will discuss how to plot the numerical data on a number line that shows for comparing fewer than 30 numbers to organize data. The line plot is the help of an example. Now consider the data writing words in one minute in a typing list. Now in the first step change the data so we have arranged the given data. Now in the second step we will determine how in the given data are multiples of 10 so on the number 9 we will take now in the next step taken the numbers at a distance of 10 the extreme left we have written the number 10 which is the least number in the given data and on the extreme right we have written the number 70 which is the greatest number in the given data. We will place a star with the correct number for each of the observations collected then we will place the star over the other. Now here in the data the number 10 is repeated twice so we put 3 stars vertically and above the other for the number 10 then the number 20 is repeated 3 times above 20 on the number line. The number 30 is repeated 5 times so we will put 5 above 30 on the number line we have put for the other numbers also. The data which shows can type in a minute can type 20 words in a minute can type 30 words in a minute and so on. We can plot the numerical data on a number line. So in this session you have learned to display numerical data with the help of stem and leaf plot and line plots. And this completes our session hope you all have enjoyed the session.