STATISTICAL TECHNIQUES AND TOOLS
REGRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To make the graph looks pretty.
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To connect the point.
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To indicate where all data points should lie.
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To make predictions.
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Detailed explanation-1: -Regression analysis is a statistical technique for determining the relationship between a single dependent (criterion) variable and one or more independent (predictor) variables. The analysis yields a predicted value for the criterion resulting from a linear combination of the predictors.
Detailed explanation-2: -❖ A regression line can be used to predict the value of y for a given value of x. Regression analysis identifies a regression line. The regression line shows how much and in what direction the response variable changes when the explanatory variable changes.
Detailed explanation-3: -Linear regression uses the values from an existing data set consisting of measurements of the values of two variables, X and Y, to develop a model that is useful for predicting the value of the dependent variable, Y for given values of X.