Please complete before the next class.

Make sure that you’ve completed all previous HW first.

## Show Notes

• in-class exercise [pdf]

The logic of Statement F, for an example:

• If my forearm is 31.5 cm, then my forearm is 4.5 cm longer than average.
• If my forearm is 4.5 cm longer than average, then it’s 1.5 SD (i.e., 3 cm = 1 SD) longer than average.
• If my forearm is 1.5 SD longer than average, then my height is r x 1.5 SD = 0.56 x 1.5 = 0.84 SD above average.
• If my height is 0.84 SD above average, then it’s 8.4 cm (i.e., 1 SD = 10 cm) above average.
• If my height is 8.4 cm above average, then it’s 181.4 cm.

You might find it helpful to think of the steps this way:

2. Convert X to standard units.
3. Using the correlation coefficient, convert standard units in X to standard units in Y.
4. Convert standard units in Y back to the original units.

## Prepare for the Exam

The exam will cover everything since the last exam. Make sure that you have completed and understand the assigned review exercises.

The exam will be multiple-choice, but each question will be based on a review exercise (and some will be very similar or identical).

A Tip: In the past, I’ve noticed that students focus too much on the difficult/complex exercises at the expense of the seemingly “easy” exercises. For each concept, I try to pick a few “trivial” exercises to get you started, some “easy”-to-“moderate” exercises to build your skills, and perhaps a “difficult” exercise to challenge you. Most exam questions come from the easy-to-moderate questions. Don’t overlook those questions.

Expect 3-5 questions from the Exam 1 material, but I will limit myself to only the big ideas from that section.

Bring a pencil and a calculator. Carlisle Rainey