A certain middle school opens at 7 A.M., and classes begin at 8 A.M. A sociologist gathered data on the number of minutes after 7 A.M. that a student arrives at school and the number of friends the student has on social media. The correlation between the two variables indicated a strong negative relationship. Which of the following is an appropriate interpretation of the correlation? A.) Students who arrive early to school have more friends on social media. B.) Students who arrive late to school have more friends on social media. C.) Having a lot of friends on social media causes a student to arrive late for school. D.) As the number of minutes of arriving after 7 A.M. increases, the number of friends on social media tends to increase. E.) As the number of minutes of arriving after 7 A.M. increases, the number of friends on social media tends to decrease.
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.
A certain middle school opens at 7 A.M., and classes begin at 8 A.M. A sociologist gathered data on the number of minutes after 7 A.M. that a student arrives at school and the number of friends the student has on social media. The
A.) Students who arrive early to school have more friends on social media.
B.) Students who arrive late to school have more friends on social media.
C.) Having a lot of friends on social media causes a student to arrive late for school.
D.) As the number of minutes of arriving after 7 A.M. increases, the number of friends on social media tends to increase.
E.) As the number of minutes of arriving after 7 A.M. increases, the number of friends on social media tends to decrease.
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