Use Your Calculator to Perform Each Calculation and Observe the Answers

question 104

Multiple Choice

Use your calculator to perform each calculation and observe the answers. Use inductive reasoning to determine which statement is true.
- $$\frac { ( - 3 ) \times 24 } { 8 \times 3 } ; \frac { ( - 14 ) \times 25 } { ( - 5 ) \times ( - 7 ) } ; \frac { - 3 \times ( - 40 ) } { ( - 2 ) \times ( - 12 ) \times ( - 7 ) } ; \frac { - 3.8 \times ( - 4 ) \times 1.3 \times ( - 5 ) } { ( - 9 ) \times ( - 9.4 ) \times ( 6.1 ) }$$ What is true about expressions containing products of nonzero numbers in both the numerator and denominator?

• A)If the total number of negative numbers in the expression is odd, the result can be either negative or positive.
• B)If the total number of negative numbers in the expression is odd, the result is negative.
• C)If the total number of negative numbers in the expression is odd, the result is positive.
• D)If the total number of negative numbers in the expression is odd, the result.is smaller than -1.

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Definitions:

Criterion-Related Validity

The extent to which a measure is related to an outcome or criterion, used to predict an individual's performance or behavior in specific contexts.

Test-Retest Reliability

An indicator of how reliably a psychological evaluation or test produces similar results across different time periods.

Valid

Relating to something based on sound reasoning, facts, or logic; often used in the context of arguments, research findings, or legal contracts.

Accurately Measures

The ability to correctly quantify or assess dimensions, quantities, or capacities using instruments or techniques.