Question

Heights (in cm) of 30 girls in Class IX are given below:
140 140 160 139 153 146 151 150 150 154
148 158 151 160 150 149 148 140 148 153
140 139 150 152 149 142 152 140 146 148
Determine the range of the data

Answer 1

Heights (in cm) of 30 girls in Class IX are given. The range of the data is 19

Step-by-step explanation:

The Minimum height in the given data set is 139

And the Maximum height in the given data set is 158

Therefore,

The Range of the data

= Maximum Value - Minimum Value

= 158 - 139

= 19

Therefore, the range of the data is 19.

Hope this answer is helpful.

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Answer 2

Thus, The range of the given data is $21$

Step-by-step explanation:

Given,

Heights (in $cm$) of $30$ girls in Class IX are given below:

$140\, 140\, 160\, 139 \,153\, 146\, 151\, 150\, 150\, 154$

$148 \,158\, 151\, 160\, 150 \,149 \,148 \,140\, 148\, 153$

$140\, 139\, 150\, 152 \,149\, 142 \,152\, 140 \,146\, 148$

Range is the difference between the highest value and the lowest value of the given data.

In your given data, the highest value is $160$ and the lowest value is $139$

So, the range of the given data is $(160-139)=21$

∴ The range of the given data is $21$