QUESTION 1

1. ________________ samples must be selected in such a way that every element of the population has a known and equal chance of being selected.

   		Cluster
   		Simple random
   		Convenience
   		Systematic random
   		Stratified random

2 points

QUESTION 2

1. _____________ is the total group of people from whom information is obtained.

   		Sample of interest
   		Census of interest
   		Population of interest
   		Subset of interest
   		The entire universe

2 points

QUESTION 3

1. What do convenience, judgment, quota, and snowball samples have in common?

   		They can all be classified as nonprobability samples.
   		They can all be classified as probability samples.
   		They all use random number tables to generate samples.
   		If properly invoked, they all provide projectable results.
   		They utilize every nth element in the sample frame.

2 points

QUESTION 4

1. Using Simple Random Sampling: In the equation P = Sample size/Population size, P stands for

   		Population
   		Possible sampling error
   		Probability of selection
   		Probability of sampling error
   		Population mean