The ages of ten students of a group are given below. The ages have been recorded in years and months:

8-6, 9-0, 8-4, 9-3, 7-8, 8-11, 8-7, 9-2, 7-10, 8-8


(i) What is the lowest age?


(ii) What is the highest age?


(iii) Determine the range?

The ages of 10 students of a group are given below:


8-6, 9-0, 8-4, 9-3, 7-8, 8-11, 8-7, 9-2, 7-10, 8-8


(i) Lowest age is 7 years 8 months.


(ii) Highest age is 9 years 3 months.


(iii) Range = Highest age – Lowest age


= 9 years 3 months – 7 years 8 months


= 1 year 7 months


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