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?
Answers
Given : The ages of ten students of a group are given in years and months 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
Range = 9 years 3 months – 7 years 8 months
Range = 1 year 7 months
Extra information :
The difference between the highest and lowest values of the observations is called Range.
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Similar questions :
The following marks were obtained by the students in a test:
81, 72, 90, 86, 85, 92, 70, 71, 83, 89, 95, 85, 79, 62
The range of the marks is
A. 9
B. 17
C. 27
D. 33
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The difference between the highest and lowest values of the observations is called
A. Frequency
B. Mean
C. Range
D. Class-intervals
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