In: Statistics and Probability
a) Nominal
Explanation: The variable “size of the tip you left for the server” is categorical. This category does not show any order. Hence the scale of measurement is nominal.
b) Nominal
Explanation: The variable “Did you pay attention to what is written on our coffee bill” is categorical (Yes or no). This category does not show any order. Hence the scale of measurement is nominal.
c) Ratio
Explanation: The variable “percentage of the bill do you leave as a tip for the server” is continuous. It contains the arbitrary point zero. Hence the scale of measurement is ratio.
d) Ordinal
Explanation: The variable “Did you feel like leaving a tip for the serve” is categorical. This category show orders as Very much, moderately, not at all. Hence the scale of measurement is ordinal.
e) Ordinal
Explanation: The variable “How pleased were you with the coffee service today” is categorical. This category show orders as 1: no pleased – 5: very pleased. Hence the scale of measurement is ordinal.