A thermometer measures in centigrade scale. It is of which type of the following?

a. Interval Scale
b. Ordinal Scale
c. Ratio Scale
d. Nominal Scale

A thermometer that measures temperature in degrees Celsius uses an Interval Scale, as it allows for meaningful differences between temperatures but does not have an absolute zero point. This means that while it can compare temperatures effectively, it doesn't indicate an absence of temperature. Thus, the correct choice is a. Interval Scale.
;

Answered by Anonymous | 2025-07-04

Let's understand what type of measurement scale a thermometer using the centigrade scale (also known as Celsius) falls under.
There are four types of measurement scales:

Nominal Scale : This scale is used for labeling variables, without any quantitative value. Examples include gender, language, and nationality. It simply categorizes or names the data in different labels.

Ordinal Scale : This type of scale provides a rank order but the differences between the ranks are not equal. For instance, education levels or restaurant ratings.

Interval Scale : This scale provides not only order but also the exact differences between values are meaningful. Importantly, interval scales do not have a true zero point. An example of an interval scale is the Celsius temperature scale. In Celsius, the difference between each degree is the same, and we can say that 30°C is 10° hotter than 20°C, but we cannot say that 30°C is 1.5 times as hot as 20°C. There's no true zero as 0°C does not mean the absence of temperature—it is simply another point on the scale.

Ratio Scale : This scale has all the properties of an interval scale, and it also has a true zero point. Examples include weight, height, and age. This means that a value of zero indicates that there is none of the attribute, and it allows for both difference and ratio comparisons.


Given this understanding, the Celsius scale (centigrade scale) is:
a. Interval Scale.
The Celsius temperature scale is an interval scale because it shows meaningful differences between measurements but does not have a true zero point.

Answered by ElijahBenjaminCarter | 2025-07-06