DA0-001 Exam Dumps | Which of the following value is the measure of dispersion "range" between the scores of ten students

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Question 17/117

Which of the following value is the measure of dispersion "range" between the scores of ten students in a test.
The scores of ten students in a test are 17, 23, 30, 36, 45, 51, 58, 66, 72, 77.

A. 90

B. 60

C. 70

D. 80

Correct Answer: B

Explanation:
The correct answer is: 60
Range is the interval between the highest and the lowest score.
Range is a measure of variability or scatteredness of the varieties or observations among themselves and does not give an idea about the spread of the observations around some central value.
Symbolically R = Hs - Ls.
Where R = Range; Hs is the 'Highest score' and Ls is the Lowest Score.
The scores of ten students in a test are: 17, 23, 30, 36, 45, 51, 58, 66, 72, 77.
The highest score is 77 and the lowest score is 17.
So the range is the difference between these two scores Range = 77 - 17 = 60

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