There is always a tendency amongst human beings to break the red-light, which causes accidents in most sometimes. Islamabad Police has installed smart cameras to automatically capture the photograph of the number plate of the vehicles that break the traffic signal. The department of transportation of the capital city has compiled a data table that shows the difference in the car accidents before and after the cameras are installed (a certain time-period apart). The following table summarizes this data as the number of accidents per intersection per year. Perform the hypothesis test to analyze the data and conclude if the installation of cameras at 13 intersections was effective or not? Intersection Rofore Camerae A ftor Conmorne
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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