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  • The lengths of 62 leaves of a plant are measured in millimetres and the data is represented in the following table : Draw a histogram to represent the data above.

The lengths of 62 leaves of a plant are measured in millimetres and the data is represented in the following table :

Length (in mm) Number of leaves
118-126 8
127-135 10
136-144 12
145-153 17
154-162 7
163-171 5
172-180 3

Draw a histogram to represent the data above.

Answers (1)

We can see that the intervals are 118-126, 127-135, 136-144...etc

For the interval 118-126: The upper limit is 126

For the interval 127-135: The lower limit is 127

Difference = 127 - 126 = 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

Length (in mm) Number of leaves
117.5-126.5 8
126.5-135.5 10
135.5-144.5 12
144.5-153.5 17
153.5-162.5 7
162.5-171.5 5
171.5-180.5 3

Hence the histogram is :

Posted by

infoexpert23

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