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  • Draw a histogram to represent the following grouped frequency distribution : Ages (in years) 20-24 Number of teachers 10

Draw a histogram to represent the following grouped frequency distribution :

Ages (in years) Number of teachers
20-24 10
25-29 28
30-34 32
35-39 48
40-44 50
45-49 35
50-54 12

 

Answers (2)

We can see that the intervals are 20-24, 25-29, 30-34....etc

For the interval 20-24: Upper limit is 24

For the interval 25-29: Lower limit is 25

Difference = 25 - 24 = 1

\frac{1}{2}\left ( \text {upper limit-lower limit} \right )=\frac{1}{2}\left ( 1 \right )=0.5

Now, we will subtract 0.5 from all lower limits & add 0.5 to all upper limits

Ages No. of teachers
19.5-24.5 10
24.5-29.5 28
29.5-34.5 32
34.5-39.5 48
39.5-44.5 50
44.5-49.5 35
49.5-54.5 12

Now, we draw the diagram.

Posted by

infoexpert23

View full answer

We can see that the intervals are 20-24, 25-29, 30-34....etc

For the interval 20-24: Upper limit is 24

For the interval 25-29: Lower limit is 25

Difference = 25 - 24 = 1

Now, \frac{1}{2}\left ( \text {upper limit-lower limit} \right )=\frac{1}{2}\left ( 1 \right )=0.5

Now, we will subtract 0.5 from all lower limits & add 0.5 to all upper limits

Ages No. of teachers
19.5-24.5 10
24.5-29.5 28
29.5-34.5 32
34.5-39.5 48
39.5-44.5 50
44.5-49.5 35
49.5-54.5 12

Now, we draw the diagram.

Posted by

infoexpert23

View full answer

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