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.

The correct answer is B. 60. Range is a measure of dispersion calculated as: Maximum value − Minimum value. From the dataset (17, 23, 30, 36, 45, 51, 58, 66, 72, 77): Maximum = 77, Minimum = 17. Range = 77 − 17 = 60. This tells us the spread of scores covers 60 points. The other options (90, 70, 80) are…

Data Analysis

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(43 responses)

A
9% (4)
B
81% (35)
C
7% (3)
D
2% (1)

Explanation

Range is a measure of dispersion calculated as: Maximum value − Minimum value. From the dataset (17, 23, 30, 36, 45, 51, 58, 66, 72, 77): Maximum = 77, Minimum = 17. Range = 77 − 17 = 60. This tells us the spread of scores covers 60 points. The other options (90, 70, 80) are arithmetic errors and do not result from the correct formula.

Topics

#Descriptive Statistics#Measures of Dispersion#Range#Data Analysis Basics

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