OPRE 3360 ACTUAL EXAM PAPER 2026 QUESTIONS WITH SOLUTIONS GRADED A+

OPRE 3360 ACTUAL EXAM PAPER 2026
QUESTIONS WITH SOLUTIONS GRADED A+


◉Data Set. Answer: All the data collected in a particular study


◉Elements. Answer: entities on which data is collected


◉Variables. Answer: A characteristic of interest for the elements


◉Observations. Answer: Measurements obtained for a particular
element


◉Data Values. Answer: number of elements x number of variables


◉Categorical Data. Answer: - referred to as qualitative data
-labels/names used to identify an attribute of elements
- Uses either nominal or ordinal scale of measurement
- Appropriate statistical analysis are rather limited


◉Quantitative Data. Answer: - indicate how many or how much

, >discrete: measuring how many
>continuous: measuring how much
- data are ALWAYS numeric


◉Nominal Scale Data. Answer: -Names, Labels, or Categories only to
identify an attribute of the element (can be numeric or non-
numeric)
- Does not have a particular ordering scheme
- Arithmetic operations not performed


◉Ordinal Data. Answer: -Has all the characteristics of nominal data,
PLUS:
>data can be arranged in some ordering scheme
>differences between data values cannot be determined or are
meaningless
>applies to categories that can be ranked


◉Interval Data. Answer: -Has all the characteristics of ordinal data,
PLUS:
>differences in data values are meaningful
>results from counting or measuring
>value of zero is arbitrarily chosen
>Always numeric