Sea level is considered an interval measurement. This is because it has a defined zero point (mean sea level) and the differences between values are meaningful; for example, a sea level of 2 meters is twice as high as 1 meter. However, it lacks a true zero in the absolute sense, as sea level can fluctuate due to various factors like tides and climate change. Thus, while it has characteristics of both nominal and interval data, it is primarily classified as interval.
No. The interval level is more refined and so enables calculations which are not available at the nominal level.
interval
interval
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A group, as a single entity, would be nominal.
No. The interval level is more refined and so enables calculations which are not available at the nominal level.
Occupation is nominal data. There is not an order to the category occupation, so that eliminates ordinal and interval.
Year of birth is interval level of measurement; age is ratio.
interval
Nominal Scale < Ordinal< Interval < Ratio
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nominal
ordinal
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It is on the interval scale.
Three basic levels of measurement are nominal, ordinal, and interval/interval-ratio.
No, level of education is not an interval level of measurement; it is typically considered a nominal or ordinal level of measurement. Education levels, such as high school, bachelor's, or master's degrees, represent categories that can be ranked (ordinal), but the differences between these categories are not uniform or measurable in a meaningful way, which is a requirement for interval data. In summary, while education levels can be ordered, they do not have equal intervals between them, disqualifying them from being classified as interval data.