The table shows the relationship between the time spent studying and test scores for a select group of students. Time Spent Studying (hours) Test Score 40 0.5 65 78 1.5 89 95 What is the correlation coefficient and what type of fit does it have for the data? A 0.9678, the correlation coefficient indicates a strong positive fit B. -0.9678; the correlation coefficient indicates a strong negative fit C 0.9678, the correlation coefficient indicates a weak positive fit D. -0.9678 the correlation coefficient indicates a weak negative fit
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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