Referring to Exercise 3.39, nd (a) f(y|2) for all values of y; (b) P(Y =0| X = 2).

Simple Linear Regression Analyzing relationship between 2 variables X= hours studied Y=test score Response variable (y)= dependent variable Explanatory variable (x)= independent variable o Helper o Helps estimate mean of y’s Scatterplot used to identify o Patterns/ relationships o Outliers What regression line gives you o Line of means for y population o Prediction of the mean o Value of the regression equation is the “least squares” estimate of the mean of that y subpopulation Include units!! sample correlation coefficient, r Measures the strength of the LINEAR association between 2 quantitative variables P= population corr