1.1-Sampling

Question 1

Statistics

Answer 1

The study of procedures for collecting, describing, and drawing conclusions from information.

Question 2

Population

Answer 2

The entire collection of individuals about which information is sought.

Question 3

Sample

Answer 3

A subset of population, containing the individuals that are actually observed.

Question 4

Simple Random Sample

Answer 4

A sample chosen by a method in which each collection of n population items is equally likely to make up the sample, just as in a lottery.

Question 5

Sample of Convenience

Answer 5

A sample that is not drawn by a well-defined random method.

Question 6

Cluster Sampling

Answer 6

Divides the population into groups. Then a random sample of groups are selected, and everyone in each of these groups is sampled.

Question 7

Stratified Sampling

Answer 7

Divides the population into groups that have something in common. Then a simple random sample is drawn from each group.

Question 8

Systematic Sample

Answer 8

Starts by ordering the population and choosing a starting point. Then every n^th individual is sampled.

Question 9

Voluntary Response Sample

Answer 9

People in the sample population are invited to share what they think. Voluntary Samples are NEVER RELIABLE!

Question 10

Statistic

Answer 10

A number that describes a sample.

Question 11

Parameter

Answer 11

A number that describes a population