A Local Tire Dealer Wants to Predict the Number of Tires

question 121

Multiple Choice

A local tire dealer wants to predict the number of tires sold each month.He believes that the number of tires sold is a linear function of the amount of money invested in advertising.He randomly selects 6 months of data consisting of tire sales (in thousands of tires) and advertising expenditures (in thousands of dollars) .Based on the data set with 6 observations,the simple linear regression model yielded the following results. = 24 = 124 = 42 = 338 = 196 Calculate the coefficient of determination.

• A).7977
• B).6364
• C).3780
• D).1428

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Definitions:

Coolers

Insulated containers used to keep food and drinks cold.

Radios

Electronic devices that receive and play audio broadcasts over the airwaves.

Trade

The action of buying, selling, or exchanging goods and services between people or countries.

Coolers

Insulated containers used to keep drinks and food cool.