Elly's hot dog emporium is famous for its chili dogs. Some customers order the hot dogs with hot peppers, while many do not care for that added bit of zest. Elly's latest sales indicate that 30% of the customers ordering her chili dogs order it with hot peppers. Suppose 18 customers are selected at random. What is the probability that fifteen or more customers will want hot peppers?

Multiple Choice

• 0.015
• 0.708
• 0.00
• 0.807
• 0.15

i. A subjective probability can be assigned to an event by an individual based on the individual's knowledge about the event. ii. The probability that you would assign to the likelihood that the Hamilton Tiger Cats will be in the Grey Cup this season must be between 0 and 1. iii. A probability is a number from -1 to +1 inclusive that measures one's belief that an event resulting from an experiment will occur.

Multiple Choice

• (i), (ii) and (iii) are all false statements.
• (ii) and, (iii) are correct statements but not (i).
• (i), (ii) and (iii) are all correct statements
• (i) and, (iii) are correct statements but not (ii).
• (i) and, (ii) are correct statements but not (iii).

Each salesperson in a large department store chain is rated with respect to sales potential for advancement. These traits for the 500 salespeople were cross classified into the following table.

Sales Ability	Fair	Good	Excellent
Below average	16	12	22
Average	45	60	45
Above average	93	72	135

What is the probability that a salesperson selected at random will have average sales ability and good potential for advancement?

Multiple Choice

• 0.30
• 0.12
• 0.525
• 0.09

The Federal Aviation Administration reported that passenger revenues on international flights increased from $528 million in 1977 to $5,100 million in 2000. What is the geometric mean annual percent increase in international passenger revenues?

Multiple Choice

• 27.9
• 10.4
• 103.6
• 9.96