STATISTICAL TECHNIQUES AND TOOLS
REGRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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For each hour of mowing, the mower is predicted to use 2 gallons.
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the predicted amount of gas the lawnmower can hold is 2 gallons
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For every two hours of mowing, the mower is predicted to use 7 gallons.
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The predicted amount of gas remaining after 1 hour is 2 gallons.
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Detailed explanation-1: -The equation y =-2x + 7 models the amount of gas remaining in a lawnmower after x hours of use since it was filled. What is the meaning of the slope? For each hour of mowing, the mower is predicted to use 2 gallons.
Detailed explanation-2: -The difference between the actual value of the dependent variable y (in the sample date) and the predicted value of the dependent variable ^y obtained from the linear regression equation is called the error or residual.
Detailed explanation-3: -Linear regression is one of the most commonly used predictive modelling techniques.It is represented by an equation = + + , where a is the intercept, b is the slope of the line and e is the error term. This equation can be used to predict the value of a target variable based on given predictor variable(s).