1. For the data below, the coefficient of determination is : provide answer to 4 decimal places with the correct sign and a leading zero examples, 0.2548 -0.8596 2. The slope of the linear regression equation is : provide answer to 4 decimal places with the correct sign and a leading zero if applicable examples, 0.2548 -0.8596 20.2356 -6.4258 3. Predict the Grocery Cost in Dollars per Person when the number of people in the family is 5: provide answer to 2 decimal places , no dollar sign is needed examples, 8.75 42.36
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
1. For the data below, the coefficient of determination is :
provide answer to 4 decimal places with the correct sign and a leading zero
examples, 0.2548 -0.8596
2. The slope of the linear regression equation is :
provide answer to 4 decimal places with the correct sign and a leading zero if applicable
examples, 0.2548 -0.8596 20.2356 -6.4258
3. Predict the Grocery Cost in Dollars per Person when the number of people in the family is 5:
provide answer to 2 decimal places , no dollar sign is needed
examples, 8.75 42.36
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