At a Recent Car Show, a Sample of 125 People

question 102

Multiple Choice

At a recent car show, a sample of 125 people produced the following results. Calculate the value of
Chi-square to determine if there is a relationship between age and model preferred.

• A) 9.89, there is a significant relationship between age and model preferred at the 5% level of significance.
• B) 9.99, there is a significant relationship between age and model preferred at the 5% level of significance.
• C) 8.89, there is insufficient evidence to show a significant relationship between age and model preference.
• D) 8.98, there is significant relationship between age and model preferred at the 5% level of significance.

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Definitions:

Method of Substitution

A technique used to solve systems of equations where one equation is solved for one variable in terms of the others, and then substituted into another equation.

System of Equations

A collection of two or more equations with the same set of unknowns.

Method of Substitution

A technique for solving systems of equations by replacing one variable with an equivalent expression in terms of the other variables.

System of Equations

A set of two or more equations with the same variables, which are solved together.