In this video I show how easy it is is to compute residuals and make a residual plot in excel.

In this video I show a fast and easy way to retrieve the scatterplot and correlation coefficient and examine the strength and direction of the association of a scatter-plot using excel.

In this video I pick a problem from the textbook to work through with you and we calculate residuals and make a residual plot. We then use the residual plot to decide if the linear model is appropriate for the data.You may want to pause the video and enter the data and practice computing residuals along with me.

This a live clip from an actual classroom where we learn how to compute residuals using a TI-83 and learn the definition of a residual.I also show how to compute the sum of the squared residuals.

In this lesson we explore the association between two variable via looking at scatter-plots and computing the correlation coefficient. This is shown using a TI-83.Lesson6 guided notes.

This is a clip from a live classroom where we do a warm up problem together and review how to numerically and graphichally summarize a data set via making a boxplot and histogram on TI-83 and we use the TI-83 to gather numerical descriptors.

This is a clip form a live classroom where I work through some problems in the textbook involving

z scores and boxplots.We review how to find outliers as well.

In this video I pull a couple of examples out of our textbook to work through (for extra practice)involving z scores and boxplots.

This is a clip from a live classrooom where we work through a homework problem together involving Chebyshev's theorem.

This is a clip fom a live classroom where we work on some problems together out of the textbook and practice using Empirical rule and Chebyshev's inequaltiy.