3.3 Daily Video

Question 1

When right skewed, this is usually the preferred measured cener

Answer 1

Median

Question 2

Collects data for all individuals in a popualtionn

Answer 2

Census

Question 3

Much easier to do when mesuring everyone

Answer 3

Random Sample

Question 4

Sample in which every group has an equal chance of being chosen

Answer 4

Simple Random Sample (SRS)

Question 5

Income is consistent within regions and varies between regions

Answer 5

Income Segregation

Question 6

Population is divided based on similar characteristics

Answer 6

Stratified Random Sample

Question 7

Grouping by heterogenous

Answer 7

Cluster

Question 8

Grouping by homogenous

Answer 8

Stratified

Question 9

Randomly choose a start point and then sample at a fixed periodic interval

Answer 9

Systematic Random Sample

Question 10

A measure of Accuracy

Answer 10

Bias

Question 11

A measure of Percision

Answer 11

Variation

Question 12

Generally leads to systematic overestimation

Answer 12

Non-Random Sample

Question 13

Most effective when strata is homogenous

Answer 13

Stratified Random Sampling