2. For each attribute given below, classify its type as nominal, ordinal, in- te

Question

2. For each attribute given below, classify its type as nominal, ordinal, in- terval, or ratio. (a) Zipcode of a city (e.g., 48824 for East Lansing) (b) Month of the year, whose value is in the range between 1 (January) to 12 (December). (c) Speed of a fast-moving object in a medium, measured in terms of its Mach number (see https://en.wikipedia.org/wiki/Mach number) For example, an object moving at Mach 1 has a speed equal to the speed of sound in the given medium (d) Number of daily visitors to a web site. (e) Homeland Security Advisory System ratings - code red/orange/etc. (f) URL of a Web page. (g) The Saffir-Simpson hurricane wind scale (see https://en.wikipedia. org/wiki/Saffir%E2%80%93Simpson-scale) (h) The wealth of a nation, measured in terms of gross domestic product (GDP) per capita above the world's average of $10,880. For example, the wealth for Norway is $91,616 since its GDP per capita is $102,496.

Explanation / Answer

Let me know if you have any doubt.

Nominal:
Nominal scales are used for labeling variables, without any quantitative value. “Nominal” scales could simply be called “labels.”

Ordinal:
With ordinal scales, it is the order of the values is what’s important and significant.

a) Nominal => we cannot compare

b) nominal

c) ratio

d) ordinal

e) ordinal=> we can scale or compare

f) Nominal => we cannot compare

g) interval

h) ratio

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