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Standard VII

Mathematics

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ii Age in yea...

Question

Question 71(ii)
Age (in years) of 6 children of two groups are recorded as below:

Find the range and mode, if the two groups are combined together.

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Solution

From the given table, age of children in group A = 7 yr, 7 yr, 9 yr, 8 yr, 10 yr, 10 yr
Age of children in group B = 7 yr, 9 yr, 11 yr, 12 yr, 12 yr, 12 yr
If both groups are combined together 7, 7, 7, 8, 9, 9, 10, 10, 11, 12, 12, 12.
Mode= 7 and 12 [ $∴$ 7 and 12 occurs most frequent, i.e. 3 times]
$∴$ Range = Maximum value - Minimum value = 12 - 7 = 5

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Standard VII Mathematics

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Question 71(ii) Age (in years) of 6 children of two groups are recorded as below: Find the range and mode, if the two groups are combined together.

Question 71(ii)
Age (in years) of 6 children of two groups are recorded as below:

Find the range and mode, if the two groups are combined together.