A team of wildlife biologists is studying the elephant population in a game reserve. The team examines two random samples of 30 elephants in the reserve. In the first random sample, 12 of the 30 elephants has a tusk broken off. In the second random sample, 7 of the 30 elephants has a tusk broken off. There are approximately 750 elephants in the reserve altogether. Select a number for each blank to make the sentences true. Based on the first sample, about Choose. elephants in the reserve would be expected to have a tusk broken off. Based on the second sample, about Choose.. elephants in the reserve would be expected to have a tusk broken off.
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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