Practice USAT-GS questions with answers and explanations.
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Continuous variables can take any value within an interval.
Weight can be measured to increasingly fine precision.
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Nominal data classify observations without ranking them.
Examples include blood group and marital status.
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Ordinal data preserve order among categories.
The gaps between successive categories need not be equal.
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Interval scales support meaningful differences between values.
Temperature in degrees Celsius has no true absence point.
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Opportunity cost is the benefit sacrificed by choosing one alternative over the next best.
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The law of demand describes an inverse price–quantity relationship, ceteris paribus.
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Since 12 × 13 = 156, subtracting gives 157 - 156 = 1.
Thus, the remainder is 1.
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Division and multiplication have equal priority and are performed left to right.
So 48 ÷ 6 = 8, and 8 × 3 = 24.
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Multiplication is performed before addition.
Thus, 3 × 4 = 12 and 5 + 12 = 17.
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The operation inside parentheses is completed first.
Then 12 ÷ 3 = 4.
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A population contains every unit about which conclusions are desired.
A sample is selected from the population for practical study.
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The cube root is the number that gives 729 when cubed.
Since 9³ = 729, the answer is 9.
