Question

Customer ID	Promotion Offer	Enrolled in Program	Pre Promotion Avg Spend	Post Promotion Avg Spend	Marketing Segment
1	Free Flight Insurance	Yes	150.39	246.32	Average Spender
2	Double Miles + Free Flight Insurance	Yes	90.32	182.8	Low Spender

7a) What type of data (scale of measurement) is each variable in this dataset?

Answer 1

Four levels of measurement are nominal, ordinal, interval and ratio. A variable is nominal if the values are categorical and cannot be arranged in any order. If ordered arrangement is possible, it is ordinal. If the variable values have meaningful difference between the values but not a natural starting point (a meaningful 0 value), then it is interval and if it has a meaningful 0, it is ratio variable.

Customer ID - Nominal (The numerical value is not important here because it is not used to represent a quantity)

Promotion Offer - Nominal

Program - Nominal

Pre Promotion Avg Spend - Ratio

Post Promotion Avg Spend - Ratio

Marketing segment - Ordinal (The values can be arranged in an order even if it is categorical)