Questions: Describe how the range of a distribution is defined and calculated.
Choose the correct answer below.
A. The range of a data set divides the lowest fourth of a data set from the upper three-fourths.
B. The range of a data set is the difference betweeh its highest and lowest data values.
C. The range of a data set divides the lowest three-fourths of a data set from the upper fourth.
D. The range of a data set is the difference between its median and most extreme value.
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Transcript text: Describe how the range of a distribution is defined and calculated.
Choose the correct answer below.
A. The range of a data set divides the lowest fourth of a data set from the upper three-fourths.
B. The range of a data set is the difference betweeh its highest and lowest data values.
C. The range of a data set divides the lowest three-fourths of a data set from the upper fourth.
D. The range of a data set is the difference between its median and most extreme value.
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Solution
Solution Steps
The range of a distribution is defined as the difference between the highest and lowest data values in the data set. This is a measure of the spread of the data.
Step 1: Define the Data Set
The given data set is \( \{3, 7, 2, 9, 4, 5\} \).
Step 2: Identify the Maximum and Minimum Values
The maximum value in the data set is \( 9 \) and the minimum value is \( 2 \).
Step 3: Calculate the Range
The range \( R \) is calculated using the formula:
\[
R = \text{max} - \text{min} = 9 - 2 = 7
\]