The number of retail drug prescriptions (in millions) can be approximated by y = 81.26x + 2928.76, where x =0 corresponds to the year 2000. Find the approximate number of prescriptions in the following years. (a) 2005 (b) 2008 (c) Assuming that this model remains accurate, in what year will the number of prescriptions be 4,250,000,000? (a) In 2005, the approximate number of prescriptions was (Type an integer or decimal rounded to two decimal places as needed.) million. (b) In 2008, the approximate number of prescriptions was million. (Type an integer or decimal rounded to two decimal places as needed.) (c) The number of prescriptions will be 4,250,000,000 in the year
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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