Perform the Indicated Operation Involving Rational Numbers $\left( - \frac { 5 } { 6 } \right) \div \frac { 20 } { 42 }$

question 139

Multiple Choice

Perform the indicated operation involving rational numbers. $\left( - \frac { 5 } { 6 } \right) \div \frac { 20 } { 42 }$

• A) \(-\) 4
• B) \(- \frac { 7 } { 4 }\)
• C) \(- \frac { 4 } { 7 }\)
• D) \(-\) 7

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Definitions:

Contingency Table

A statistical table that displays the frequency distribution of variables to analyze the relationship between them.

Demonstrating Causality

The process of proving a cause-and-effect relationship between two variables, showing how one directly influences the other.

Spurious Association

A relationship between two variables that appears causal but is actually due to the effect of some external or intervening variable.

Non-Spuriousness Test

A method in statistical analysis to determine if a relationship between two variables is genuine and not due to the influence of some other variable.