) The table shows the number of dollars spent in Country x (in millions) on ears 1985 (x = 1) through 1995 (x-11). 8) environmental protection programs during the y Use l east-squ ares regression to find the polynomial function that best models these data. Round coefficients to three dečimal places Year Spending (millions of dollars) 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 5.5 5.8 6.1 6.9 7.1 7.0 -40147591·여 7.3 7.6 7.8 7.9 2
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.
I can not figure out for the life of me what least-squares regression means in this problem I’m about to send a picture of. I think I go the answer right but I’m not sure. If you could go through it step by step that’d be awesome please. Thanks
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