A hotel asks departing guests to mark a stay as poor, fair, good, or excellent. At what level is this variable measured?

A clinic records each patient's blood type as A, B, AB, or O. At what level is blood type measured?

A school records each student's commute time in minutes, where 0 minutes means no commute and 40 minutes is twice 20 minutes. At what level is commute time measured?

A city records the daily high temperature in degrees Celsius; 0 °C is not an absence of heat, and 20 °C is not twice as hot as 10 °C. What level is this?

A restaurant records each lunch order as soup, salad, sandwich, or pasta. At what level is the order type measured?

A coach records each runner's finish place as 1st, 2nd, 3rd, and so on. At what level is finish place measured?

A biologist measures plant height in centimeters, where 0 cm means no height and 30 cm is three times 10 cm. At what level is height measured?

A museum records the calendar year each artifact was made. Differences such as 50 years are meaningful, but year 0 is not an absence of time. What level is this?

A survey records each student's T-shirt color as red, blue, green, or black. The values can only be named, not ordered or averaged. What level is this?

A movie app records viewer ratings as 1, 2, 3, 4, or 5 stars; higher means better, but equal gaps between ratings are not guaranteed. What level is this?

A store records closing time on a 24-hour clock. Differences in hours are meaningful, but 00:00 is not no time and 18:00 is not twice 09:00. What level is this?

A farm records the mass of rice bags in kilograms; 0 kg means no mass, and 8 kg is twice 4 kg. What level is this variable?

A mailing list records ZIP codes. The codes label delivery areas, and averaging or ranking them is not meaningful. What level is ZIP code?

A library records books checked out as 0, 1, 2, 3, and so on; 0 means none, and 4 books is twice 2 books. What level is this variable?

A team roster records jersey numbers such as 3, 8, 12, and 22; the numbers are labels, and arithmetic on them has no meaning. What level is this?

A clothing store records each shirt sold by size: small, medium, large, or extra large. At what level is shirt size measured?

A weather station logs temperatures in degrees Fahrenheit, and some winter readings fall below 0 °F. At what level is temperature in °F measured?

A chemistry class records liquid volume in milliliters. A reading of 0 mL means no liquid, and 60 mL is twice 30 mL. What level is volume?

A clinic file lists four patient items: blood type, pain rating from 1 to 10, birth year, and weight in kilograms. Which item is nominal?

A school record lists student ID number, letter grade A to F, classroom temperature in °C, and height in centimeters. Which item is ordinal?

A science fair record lists project category, judging place, launch year, and battery life in hours. Which item is interval?

A fitness app stores username, effort rating low-medium-high, start time on a 24-hour clock, and distance in kilometers. Which item is ratio?

A traffic study records vehicle type, congestion rating light-moderate-heavy, time of day, and number of passengers. Which item is interval?

A library record lists shelf section, book condition poor-fair-good, publication year, and page count. Which item is ordinal?