The pattern of higher rates of current alcohol use, binge alcohol use, and heavy alcohol use among full-time college students than among others aged 18 to 22 has remained consistent since 2002. Using data from 2002 to 2008, the equations representing the percents of young adults aged 18 to 22 who used alcohol are shown below, where x represents the number of years after 2000 Enrolled in college y=-0.336x+19.311 Not enrolled y= -0.069x+13.599 Solve the system to determine when the percent for those enrolled in college will equal that for those not enrolled. What will the percent be? In the year ___, the percent for those enrolled in college will equal that for those not enrolled. (Round to the nearest year) The percent of young adults aged 18 to 22 using alcohol will be ___% (Round the neearest whole number as needed)
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.
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