## Thursday, November 10, 2011

### Pop Quiz

1. A town has two schools: one large and one small. Assuming there is an equal number of boys and girls born every year in the Philippines, which school is more likely to have close to 50 percent girls and 50 percent boys born on any given day?

A. The larger
B. The smaller
C. About the same (say, within 5 percent of each other)

2. A team of psychologists performed personality tests on 100 professionals, of which 30 were engineers and 70 were lawyers. Brief descriptions were written for each subject. The following is a sample of one of the resulting descriptions:

Juan is a 45-year-old man. He is married and has four children. He is generally conservative, careful, and ambitious. He shows no interest in political and social issues and spends most of his free time on his many hobbies, which include home carpentry, sailing, and mathematics.

What is the probability that Jack is one of the 30 engineers?

A. 10–40 percent
B. 40–60 percent
C. 60–80 percent
D. 80–100 percent

3a. How many dates did you have last month?

A. 1–3
B. 3–5
C. 0

3b. On a scale of 1 to 5, how happy are you these days (5 being the happiest)?

A. 1
B. 2
C. 3
D. 4
E. 5

4. Imagine that you decided to see a play and you paid 500 pesos for the admission price of one ticket. As you enter the theater, you discover that you have lost the ticket. The theater keeps no record of ticket purchasers, so the ticket cannot be recovered. Would you pay 500 pesos for another ticket to the play?

A. Yes
B. No

5a. Choose between getting 9,000 pesos for sure or a 90 percent chance of getting 10,000 pesos.

A. Getting 9,000
B. 90 percent chance of getting 10,000

5b. Choose between losing 9,000 for sure or a 90 percent chance of losing 10,000.

A. Losing 9,000
B. 90 percent chance of losing 10,000

*** END OF QUIZ ***