Q. 63.5( 6 Votes )

# 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?

Answer :

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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PREVIOUSExplain the meaning of the following terms:(i) Variable(ii) Class-interval(iii) Class-size(iv) Class-mark(v) Frequency(vi) Class limits(vii) True class limitsNEXTThe monthly pocket money of six friends is given below:Rs. 45, Rs. 30, Rs. 40, Rs. 50, Rs. 25, Rs. 45(i) What is the highest pocket money?(ii) What is the lowest pocket money?(iii) What the range?(iv) Arrange the amounts of pocket money in ascending order.

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