Section 1.2 Part 3 AP Statistics CASA

Comparing Distributions We have already seen the usefulness of comparing two distribution in the answering difficult questions like: “Who was a better home run hitter, Barry Bonds or Hank Aaron?” We used side-by-side boxplots to answer that question. AP Statistics, Section 1.2, Part 3

Back-to-Back Stemplots We can use stemplots as a way of doing comparisons between two distributions. For example, which baseball league is more competitive, the American League or the National League? AP Statistics, Section 1.2, Part 3

Back-To-Back Stemplots AP Statistics, Section 1.2, Part 3

Back-To-Back Stemplots AP Statistics, Section 1.2, Part 3

AP Statistics, Section 1.2, Part 3 Reminders If there are outliers, don’t use mean or standard deviation to compare distributions. You can’t compare a standard deviation of one distribution to the IQR of a different distribution. You can’t compare a mean of one distribution to the median of a different distribution. AP Statistics, Section 1.2, Part 3

AP Statistics, Section 1.2, Part 3 Assignment Exercises 1.48 – 1.58, The Practice of Statistics, for tomorrow. Exercises 1.61-1.73 odd. Test Chapter 1, Wednesday AP Statistics, Section 1.2, Part 3