1When sampling without replacement, the sampled items are independent. (True False)

2.In a normal distribution, P ( x < 5 ) P ( x 5 ) . true or false

3.An automobile insurance company divides customers into three categories: good risks, medium risks, and poor risks. Assume that a total of 11,155 customers, 7754 are good risks, 2460 are medium risks, and 941 are poor risks. As part of an audit, one customer is chosen at random. Answer the the following questions. Round your answers to 4 decimal places, if necessary.

a) What is the probability that the customer is a medium risk?

b) What is the probability that the customer is NOT a medium risk?