1. Warm-up
1. In a statistics class there are 18 juniors and 10 seniors; 6 of the seniors are female, and 12 of the juniors are males. If a student is selected at random, find the probability of selecting the following: a. A junior or a female b. A senior or a female c. A junior or a senior 2. A survey found that 68% of book buyers are 40 years or older. If two book buyers are selected at random, find the probability that both are 40 years or older. 3. In a department store there are 120 customers, 90 of whom will buy at least one item. If 5 customers are selected at random, one by one, find the probability that all will buy at least one item. (Notice there is a limited # of customers …so that makes these events DEPENDENT)l

2. Discuss the textbook Review problems or the Practice worksheet

3. Directions for questions around the room
Work by yourself or with a partner.
Start at one of the questions (any).
Write the answer under #1.
Then the answer to your first question should be on another piece of paper, then solve the question right underneath it.
That will lead you to the answer on another paper.
Once you answer all 22 questions bring your paper to me for grading.
If you do not finish, you and your partner will lose points for each question you do not get to answer.
Hint: You should not get the same color of paper in a row, I alternated the colors. If you go from blue paper to blue paper, you probably got the wrong answer.

4. Homework Copy Ch. 7 Terms and formulas
For 5) to 8) Write the formulas and properties as described in the shaded blue boxes on the pages given.

7. 4% of people have AB blood. What the probability that
This was a question posted
on A.P. Statistics teacher mailing list.
Warm-up Day of Ch. 6 Test
4% of people have AB blood.  What the probability that
there is a Type AB donor among the first five people
checked?
I understand why you use the geometcdf(0.04,5) to
calculate the probability of finding success on or before the
5th person. 
But what I don’t understand is why you can’t also use
binompdf (5,0.04,1) to find the probability of one success
in five people.
Explain why geometcdf (0.04, 5) is different from binompdf (5, 0.04,1)

8. You can write on the test.
Directions for Ch. 6 Test
You can write on the test.
Use the A.P. Statistics Exam formula sheet.
Read the directions carefully and be sure to answer all questions.
When you finish turn in your test and the formula sheet start reading 7.1.
You homework is to read 7.1 and answer D1 and D2.
Fill in and answer the A.P. Statistics Survey