WEEK 4-5

provides us the tool through which such data are collected, analyzed, and presented to arrive at some rich and interesting information.

• statistics

• descriptive statistics

• inferential statistics

• population

is the process of formulating a mathematical model that can be used to predict or determine one variable by another variable/s.

• linear regression

• correlation coefficient

• regression analysis

• coefficient of determination

denoted by r 2 , is a number that expresses the proportion of the total variation in the values of the dependent variable that can be explained by the linear relationship with the values of the independent variable.

• correlation coefficient

• coefficient of determination

• regression analysis

• linear regression

The measure of the degree of correlation is known as

• line of best fit

• simple regression

• correlation analysis

• correlation coefficient

a statistical method used to determine whether a linear relationship or association between variables exists.

• correlation coefficient

• correlation analysis

• linear relationship

• line of best fit

is a visual way to describe the nature of the relationship between the variables. It is a graph of the ordered pairs (x, y) of numbers consisting of the independent variable x and the dependent variable y.

• simple regression

• line of best fiit

• scatter plot

• multiple regression

assesses how strong the linear relationship is between two variables, and is heavily relied on by researchers when conducting trend analysis.

• R^2

• multiple regression

• simple regression

• n coefficient

more commonly known as R-squared (or R2)

• correlation

• correaltion coefficient

• line of best fit

• coefficient of determination

is a statistical measurement that examines how differences in one variable can be explained by the difference in a second variable, when predicting the outcome of a given event.

• correlation coefficient

• line of best fit

• coefficient of determination

• correlation

is a straight line that is the best approximation of the given set of data. It is used to study the nature of the relation between two variables.

• correlation coefficient

• line of best fit

• coefficient of determination

• correlation