When dealing with an interval scale such as Fahrenheit temperature, it is correct to say
A)the difference between 90 and 30 is three times the difference between 40 and 20
B)60 is three times as hot as 20
C)both a and b are correct
D)none of the above are correct

Question

Quizplus · Accepted Answer

Interval scales have equal intervals between values, so the difference between 90 and 30 is indeed three times the difference between 40 and 20. However, you cannot say 60 is three times as hot as 20 because interval scales do not have a true zero point, so ratios are not meaningful.

When Dealing with an Interval Scale Such as Fahrenheit Temperature