Question

State which type of measurement scale each represents, and then which center measures can be use for the variable?

A.) You collect data on the height of plants using a new fertilizer.

B.) You collect data on the cars that people drive in Campbelltown, Australia.

C.) You collect data on the temperature at different locations in Antarctica.

D,) You collect data on the first, second, and third winner in a beer competition.

Answer 1

Solution(a)

This variable can be measured on ratio scale as this will start from a true zero point. Height of plant is using a fertilizer can be measured on Ratio scale and for center measure we can use mean or median. We will use mean if data is not skewed else we will use median.

Solution(b)

This is a qualitative variable and we will use Nominal scale for this type of data. For center measure we will use mode for this.

Solution(c)

For this type of data we will use lnterval scale. And center of measure will be mode or median.

Solui9n(d)

For this data we will use ordinal data. As data is in order like first, second, and third and for center of measure we will use median.