Identify which level of measurement is represented by the following data: 1. Years covered in American History : 1776-1876. 2. Annual income of students in a statistics class. 3. Course grades in any...

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Extracted text: Identify which level of measurement is represented by the following data: 1. Years covered in American History : 1776-1876. 2. Annual income of students in a statistics class. 3. Course grades in any course : A,B,C,D,E 4. Students gender : Male, Female.


Extracted text: • Nominal data consists of names, labels or categories, gender, major at college. There is no natural or obvious ordering of nominal data. Arithmetic cannot be carried out on nominal data. • Ordinal data can be arranged in any particular order. However, no arithmetic can be done or performed on ordinal data. • Interval data are similar to ordinal data, with the extra property that subtraction may be carried out on an interval data. There is no natural zero for interval data. • Ratio data are similar to interval data, with the extra property that division may be carried out. There exists a natural zero for ratio data.