Roller coasters Roller coasters get all their speed bydropping down a steep initial incline, so it makes sensethat the height of that drop might be related to the speed of the coaster. Here’s a scatterplot of top Speed and larg-est Drop for 75 roller coasters around the world.a) Does the scatterplot indicate that it is appropriate tocalculate the correlation? Explain.b) In fact, the correlation of Speed and Drop is 0.91.Describe the association.
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.
dropping down a steep initial incline, so it makes sense
that the height of that drop might be related to the speed
est Drop for 75 roller coasters around the world.a) Does the scatterplot indicate that it is appropriate to
calculate the
b) In fact, the correlation of Speed and Drop is 0.91.
Describe the association.
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