Nominal, Ordinal, Interval, Ratio

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Determine the types of measurement scales for each variable (Nominal, Ordinal, Interval, Ratio):

1)     Name
2)     Gender
3)     Absences
4)     Physical Education (PE)
5)     Math
6)     Writing
7)     Reading
c.     Determine the correlations between pairs of all interval variables (i.e., Absences with PE, PE with math, math with writing, etc.)


d.    How much of the math grade can be explained by the PE grade? How much of the writing grade can be explained by the reading grade? Do not only show calculations but also give rationale for your findings.