james kowalsky

Students roll dice and record how many throws it takes to roll "doubles." After 15 trials, the 5-number summary is calculated. Then outlier "fence posts" are computed, and then sketched, using the 1.5 IQR formula. A box plot is drawn and outliers - if any - are clearly plotted outside the fences. Note: If no student accumulates many rolls before rolling doubles - add your own pretend large outlier type result that you did at home.

In pairs, each student will attempt to predict the playing card that his/her partner will deal next from a shuffled deck of cards. A box and whisker plot is then sketched. The IQR, or 50% of the guesses, will help indicate how good the student is at predicting.

Given two 2-way contingency tables, students calculate contingency percentages after completing 2-way tables involving Titanic survival stats and then Eczema cream effectiveness. By comparing percentages, it can be determined whether or not evidence for DEPENDENCE between two variables can be suggested.