A newspaper collected information on schools in its circulation area in order to compare their quality. Two Which is a true statement regarding Springside? Springside does not affect the correlation. measures the newspaper collected for each school, mean class size and mean score on a statewide reading Springside weakens the correlation shown in the scatterplot. exam, are shown in the scatterplot. One school in the report, Springside Elementary, is labeled in the graph. O Springside strengthens the correlation shown in the scatterplot. Removing Springside would increase the value of the Comparing Schools correlation coefficient. 90 80 Springside 70 60 50 40 10 15 20 25 30 Mean State Test Score
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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