The table shows the marks (out of 20) in English language and chemistry obtained by different students selected at random from a large group of students. English language 11 7 12 8 15 18 19 20 chemistry 12 9 15 10 17 17 17 18 a. Determine the slope coefficient B1 for the regression of chemistry marks on marks English language marks. Answer rounded to three decimal places. b. Determine the y-intercept Bo for the regression of chemistry marks on marks English language marks. Answer rounded to two decimal places. c. If one student got 14 marks in English language, then what would be the predicted mark in chemistry for that student? Answer rounded to two decimal places.
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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