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Standard VI

Mathematics

Interpretation of Pictographs

The following...

Question

The following are the ages ( in years) of 25 students of a class.
Prepare a table using tally marks and then draw a pictograph using 1 for 2 students.
$15, 13, 16, 12, 14, 15, 16, 13, 12, 14, 16, 16, 15, 12, 11, 15, 16, 13, 12, 14, 15, 15, 12, 11, 16$

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Solution

Step 1. Prepare a table using tally marks for showing the different ages ( in years) of 25 students and their respective repetition side by side.

Step 2. Draw a pictograph using 1 for 2 students.

Hence, the table using tally marks and pictograph for the above data is shown in step 1 and step 2 respectively.

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Q. The ages of students of 10^th class, in a school are as follows. The ages are given in years months.

14

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6, 13

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11, 15

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0, 13

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9, 14

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5, 14

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1,

Prepare a grouped frequency distribution table (classes; 13

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14, 14

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15, 15

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16, ....)

Draw frequency distribution table and bar graph for the following data :

Ages(in years) of students in a class:

$14, 13, 12, 13, 14, 15, 13, 14, 16, 15, 14, 13, 12, 12, 12, 13, 13, 13, 13, 15, 14, 14, 13, 13, 12, 12, 12, 15, 14, 12, 12, 13, 13, 14, 12, 16,$

$16, 13, 13, 12, 14, 14$

Question 93

The marks obtained (out of 20) by 30 students of a class in a test are as follows :
14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14,
19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20.
Preparing a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4-8 (excluding 8 and including 4).

Q. The marks (out of 25) obtained by students of a certain class are 11, 12, 14, 13, 17, 11, 12, 12, 17, 21, 24, 14, 11, 13, 12, 17, 21, 19, 19, 24, 14, 15, 12, 17, 15, 19, 21, 13, 16, and 15.
What is the mode of marks obtained by students of the class?

Construct a frequency table for the following ages (in years) of $30$ students using equal class intervals, one of them being $9 - 12$ , where $12$ is not included:

$7, 12, 18, 6, 11, 15, 21, 9, 8, 13, 15, 17, 22, 19, 14, 21, 23, 8, 12, 17, 15, 6, 18, 23, 22, 16, 9, 21, 16, 11 .$

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The following are the ages ( in years) of 25 students of a class. Prepare a table using tally marks and then draw a pictograph using 1 for 2 students.15,13,16,12,14,15,16,13,12,14,16,16,15,12,11,15,16,13,12,14,15,15,12,11,16

The following are the ages ( in years) of 25 students of a class.
Prepare a table using tally marks and then draw a pictograph using 1 for 2 students.
$15, 13, 16, 12, 14, 15, 16, 13, 12, 14, 16, 16, 15, 12, 11, 15, 16, 13, 12, 14, 15, 15, 12, 11, 16$