The Relationship Between Study Time and Test Scores: A Correlation and Regression Analysis

Correlation and Regression Project Student’s Name Institutional Affiliation Course Name and Number Instructor’s Name Due Date Part A Correlation refers to the relationship between two variables. It can also be defined as a number that lies between -1 and 1 that shows the strength and direction of the two variables. There are 3 types of correlation, perfect positive, perfect negative and zero correlation. Perfect positive correlation is denoted by 1 where the two variables change in the same direction. Perfective correlation which is denoted by 1 occurs where the two variables in examination change in opposite direction while zero correlation means that the two variables do not have any relationship. One can determine the correlation of a given scatter by examining the pattern of the points plotted. It is also possible to calculate the correlation using Excel by using the CORREL function which provides the strength and the variable of the two variables. If the correlation is closer to +1 and -1, it implies that the variables have a strong positive and negative correlation respectively. For instance, study t