THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 248

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A manufacturer of automobiles conducted a market survey.Eighty percent of the customers want better fuel efficiency,while 55% want a vehicle navigation system and 45% percent want both features.
-The probability that a person does not want a vehicle navigation system is:

• A)0.45
• B)0.10
• C)0.90
• D)0.35

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Definitions:

Linear Regression

A statistical method to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.

Predictor Variables

Variables in statistical models that are used to predict or explain changes in a dependent variable.

Correlation Matrix

A table showing correlation coefficients between variables, indicating the strength and direction of relationships.

Durbin-Watson Test

A statistical test used to detect the presence of autocorrelation at lag 1 in the residuals from a regression analysis.