A State Transportation Department Is Determining the Safety of Roadways

question 83

Multiple Choice

A state transportation department is determining the safety of roadways in a locality based on the age of drivers and number of traffic accidents.The department calculates a Pearson correlation coefficient of 0.295.If the critical value for r = 0.330, what could be concluded?

• A) The number of traffic accidents is significantly related to the age of drivers.
• B) The age of drivers is significantly related to the number of traffic accidents.
• C) The age of drivers is not significantly related to the number of traffic accidents.
• D) The age of drivers is causally related to the number of traffic accidents they have.

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Definitions:

Truth Table

A table used in logic to determine the truth values of logical expressions based on all the possible combinations of their constituents.

Atomic Sentences

Statements in logic that cannot be broken down into simpler components and assert a single fact.

Truth Values

The valuation in logic referring to the states of truth (typically true or false) that a logical statement can hold.

Truth Table

A logic table that helps in figuring out the results of logical expressions according to their given arguments.