1. Homework: pg. 142 #29, 30 pg. 147 #31-33
29.) A B C D ) A B C D ) A B C ) A B ) A. 5.2% B. 55% C. 279 or more days

2. 2.2 Normal Distribution: Using the Calculator

3. Find the area for each z-score

4. What is the percentile for 120?
E.) IQ Test
What is the percentile for 120?
What % is between 90 and 110?
What % is between 70 and 85?

5. Examples: Find Z - Score
30%
25%

6. Find score given percentile
ACT Scores:
Pg 167—calc steps

7. Assessing Normality: How can you test if data could possibly be Normal?
1.) Check for bell-shape and symmetric. See if the Rule is true. 2.) Construct a normal probability plot. You are looking for linear data. *You don’t need to know how to make it, just read it.

8. Normal Probability Plots

9. Normal Probability Plots

10. Pg. 157 #43-45, 48, 50
Homework