1. Fill in the blank:

a) In sampling without replacement trials are no longer ..................................... However, if sample size, n, (i.e number of trials) is at most ......................%

of the population size, N, then one can treat them as if they are.

h

b)One problem a bad survey design might suffer from is ..........................,in which some portion of the population is not sampled at all or has a smaller representation in the sample than it has in the population.

c) The managers of a company used the company e-mail directory to contact every 50themployee on the list when forming asample of employees to survey. This method of sampling is called ..........................

2) Suppose that the probability that a New York State resident has traveled to Canada is 0.18, to Mexico is 0.09, and to both countriesis 0.04. What is the probability that a randomly chosen New York State resident has traveled to Canada or Mexico?