Question

Difficulty: EasyMeasures of Dispersion

A quality control inspector records the weight variations, in ounces, of five identical manufactured parts. The recorded weights are: $8.5$ , $4.0$ , $10.5$ , $6.0$ , and $7.5$ . What is the range of these recorded weights?

A
1.0
B
10.1
6.5Answer
D
7.5

Answer

6.5

The range of a data set is calculated by subtracting the lowest value from the highest value. In this list, the highest weight is

10.5

and the lowest weight is

4.0

. Subtracting

4.0

from

10.5

yields a range of

6.5

.

Step-by-Step Solution

1

Identify the maximum and minimum values in the given data set.

The maximum weight is

10.5

and the minimum weight is

4.0

.

The range is defined as the difference between the highest and lowest values in a set of data.

2

Subtract the minimum value from the maximum value.

10.5 - 4.0 = 6.5

Performing the subtraction gives the statistical range of the data.

Key Concept

Measures of Dispersion

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Topics

Measures of Dispersion

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