1. If you were asked to play a game in which you tossed a fair coin three times and were given $2 for every head you threw, how much would you expect to win on average?
A. $3
B. $4
C. $5
D. $6
E. $7
2. Your company's internal auditor believes that 10% of the company's invoices contain errors. To check this theory, 20 invoices are randomly selected and 5 are found to have errors.
What is the probability that of the 20 invoices written, five or more would contain errors if the theory is valid?
A. 0.043
B. 0.3
C. 0.067
D. 0.6
E. 0.133