Page 254 - ICSE Math 6

Self-Testing Exercise 6

DATA HANDLING

1. The data below shows the lengths (in cm) of 25 leaves that Shruti collected.
6, 7, 5, 8, 7, 5, 3, 7, 4, 6, 5, 3, 5, 2, 4, 3, 7, 6, 6, 7
Arrange the lengths of leaves in a table using tally marks.
2. The number of milk bottles sold by a shopkeeper on consecutive days is as follows.

Day Monday Tuesday Wednesday Thusday Friday Saturday
Number of
bottles sold 250 300 150 200 350 450

Prepare a pictograph of the given data using one symbol to represent 50 bottles.
3. The heights of 8 students are: 152 cm, 148 cm, 154 cm, 151 cm, 144 cm, 150 cm,
148 cm, 153 cm. Find their average height.

4. The blood pressure of 10 patients who visited a doctor are: 165, 130, 142, 145, 135, 190 175,
172, 130, 158
For the above data, evaluate the: (a) mean (b) median
5. Draw a bar graph to represent the data given below.

Month January February March April May June

Money spent in
travelling (in `) 600 300 250 600 450 500

6. The adjoining bar graph represents the number of pages in different books. Answer the following
questions using the bar graph.

(a) Which book has the maximum number of pages?
400
(b) Which book has the minimum number of pages? Number of pages 500
300
(c) Is there any book which has less than 200 pages? 200

(d) State True or False. 100

Books B and E have the same number of pages. 0 A B C D E
Books

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