4. A veterinarian with a large practice was interested in whether to concentrate on only purebred dogs or to continue to treat mixed breeds as well. The table below summarizes the spending habits of his clients for the last year. Туре of Dog Pruebred Mixed Breed Total Less than $100 191 213 404 Health Care s100 or more 354 152 506 Spending Total 545 365 910 If one of these dogs was selected at random, what is the probability that $100 or more was spent on the dog's health care last year? Given that one of these dog owners spent less than $100, find the probability that the dog was a mixed breed? (a) (b) (c) Given that a randomly selected dog is a mixed breed, what is the probability that less than S100 was spent on its health care less year? Are the events “spending $100 on health care" and “have a mixed breed dog" independent of dependent? Explain. (d)
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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