Question

explain how to find the range of a data set. what is an advantage of using the range as a measure of variation? what is a disadvantage?

explain how to find the range of a data set. choose the correct answer below.
a. the range is found by subtracting the minimum data entry from the maximum data entry.
b. the range is found by subtracting the first data entry from the last data entry.
c. the range is found by adding the first and last data entries.
d. the range is found by adding the minimum and maximum data entries.

Explanation:

Define the range of a data set

Using the Range Calculation knowledge point

$$ \text{Range} = \text{Maximum value} - \text{Minimum value} $$

Evaluate the given options

Using the Range Calculation knowledge point

• Option A correctly states that the range is found by subtracting the minimum data entry from the maximum data entry.
• Option B is incorrect because the first and last entries are not necessarily the minimum and maximum unless the data is sorted.
• Options C and D are incorrect because they involve addition rather than subtraction.

Answer:

• A. The range is found by subtracting the minimum data entry from the maximum data entry. (Correct answer)
• B. The range is found by subtracting the first data entry from the last data entry.
• C. The range is found by adding the first and last data entries.
• D. The range is found by adding the minimum and maximum data entries.