A Sample of Five Flooring Installers, Each Carrying Three Types

question 114

Multiple Choice

A sample of five flooring installers, each carrying three types of flooring, was taken and the price per square metre (to the nearest cent) was recorded for each type of flooring, as shown in the table below. (i) The range for laminate flooring is 0 or none.
(ii. The standard deviation for nylon carpet is 4.64 cents
(iii) The range for nylon carpet is $0.12 or 12 cents.

• A) (i), (ii) and (iii) are all correct statements
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements, but not (i).
• E) (i), (ii) and (iii) are all false statements.

Learn methods to verify the reliability of information from various sources.

Recognize the limitations of conventional search engines in accessing the deep Internet.

Understand the importance and scope of secondary information sources.

Learn the rules for citation, including what does not require citation.

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Definitions:

Range

The difference between the highest and lowest values in a set of data.

Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of data values, showing how much variation there is from the mean.

Variance

The measure of spread in a distribution, representing the average of the squared differences from the mean.

Measures of Center

Quantitative measures that describe the central tendency of a data set, including mean, median, and mode.