Paramedical Fees

1. A tire manufacturer advertises, “the median life of our new all-season radial tire is 50,000 miles. An immediate adjustment will be made on any tire that does not last 50,000 miles.” You purchased four of these tires. What is the probability that all four tires will wear out before traveling 50,000 miles?
   Answer

1/10 or 0.10

¼ or 0.25

1/64 or 0.0156

1/16 or 0.0625

3. If two events are independent, then their joint probability is
Answer

computed with the special rule of addition

computed with the special rule of multiplication

computed with the general rule of multiplication

computed with Bayes theorem

4. A sample of the paramedical fees charged by clinics revealed these amounts: $55, $49, $50, $45, $52 and $55. What is the median charge?
Answer

$47.50

$51.00

$52.00

$55.00