Page 155 - Revised Maths Wisdom Class - 6
P. 155

Data Handling and Presentation                                                                           153

        Example 3:  The pictograph given below shows the number of persons who travelled from Mumbai to New
                       Delhi by train on each day of a week.

                       Answer the following questions:           Monday
                       (a)  On which day was there maximum       Tuesday
                           rush in the train?
                       (b)  Find the total number of people      Wednesday
                           travelled during the week.            Thursday

                       (c)  On which day was there minimum
                           rush in the train?                    Friday

                       (d)  Find the difference between the      Saturday
                           number of people who travelled in
                           maximum and minimum numbers.         Each      represents 100 persons.

        Solution:      (a)  There was maximum rush on Thursday with 1000 people in train.

                       (b)  Total number of people travelled during the week = 42 × 100 = 4200.
                       (c)  There was minimum rush on Wednesday with 400 people in train.

                       (d)  Difference between maximum and minimum number of people = 1000 – 400 = 600.


        Drawing a Pictograph
        In the previous section, we have learned how to interpret the pictograph. Let’s now try how to draw a pictograph.
        We need to follow these steps:
        Step 1:  Collect the data and choose a symbol to represent it.

        Step 2:  Decide the appropriate scale.
        Step 3:  Add the labels of the data to the vertical line of the table or graph.
        Step 4:  Add the required number of symbols from the symbol key as per the scale chosen.

        Step 5:  Write the title of the pictograph.

        Let us learn through examples.


              ILLUSTRATIONS

        Example 1:  The following table shows the number of computers sold by a company for the months January to
                       April. Prepare a pictograph for the table.


                         Month                    January        February         March           April

                         Number of computers         25             35              20              15
   150   151   152   153   154   155   156   157   158   159   160