#7 The following is a table of the average weekly study time (x) and the score on a MAT 1272 exam (y) for 7 students : Time Exam Score 6. 87 2.5 75 0. 50 3. 63 92 100 5.5 87 (a) Does the plot show a positive or negative relationship between weekly studytime and the score on the MAT 1272 exam? Explain. (b) Predict, to the nearest whole number, the grade of a student whose average weekly study time is 4 hours?
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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