Question
Construct the frequency distribution table from the following cumulative frequency table:
Ages No. of students
Below $4$ $0$
Below $7$ $85$
Below $10$ $140$
Below $13$ $243$
Below $16$ $300$
$(i)$ State the number of students in the age group $10 - 13.$
$(ii$) State the age$-$group which has the least number of students.

Answer

The frequency distribution table is
$C. I$ $c.f$
$4 - 7$ $85$
$7 - 10$ $55$
$10 - 13$ $103$
$13 - 16$ $57$
$(i)$The number of students in the age group is $10 -13$ is $103$
$(ii)$The age group which has the least number of students is $7 - 10$

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