Management contracts offer foreign owners the opportunity to manage businesses for a fee

Which of the following organizations is likely to use the multiple-factor index method to estimate the market potential?

A) a firm that manufactures auto parts B) a firm that provides facility management services to large offices C) a company that provides Web site development services for small businesses D) a company that manufactures diagnostic machines for hospitals E) a firm that manufactures fashionable clothes for teenagers

Customers are serviced at a rate of five customers per hour according to an exponential distribution. What is the probability that customer service will require fewer than 20 minutes?

A) less than or equal to 0.75 B) greater than 0.75 but less than or equal to 0.80 C) greater than 0.80 but less than or equal to 0.85 D) greater than 0.85