Unit 2- Gathering And Displaying Data

Question 1

Sample Data

Answer 1

Data gathered from a group selected from the population

Question 2

Cross-Sectional Study

Answer 2

Carried out over a specific time frame focased on a wide range of individuals

Question 3

Longitudinal stufy

Answer 3

Focases on a small group over an extended period of time

Question 4

What do longitudinal studies allow the analysis of?

Answer 4

Trend

Question 5

Quantitative data

Answer 5

Numerical

Set of numbers which can be summerized with a mean etc

Question 6

Qualitative Data

Answer 6

Categorical (described or observed)

Question 7

Continuous Data

Answer 7

Any value is possible

Question 8

Discrete Data

Answer 8

Only certain values possible (gaps occur)

Question 9

Ordinal

Answer 9

Order important (opinion/degree of illness)

Question 10

Nominal

Answer 10

Order Unimportant (race, smoking status)

Question 11

Primary Data

Answer 11

Gathered by researcher

Question 12

Secondary Data

Answer 12

Gathered by another source

Question 13

Census

Answer 13

Survey includes entire population

Question 14

Sample

Answer 14

Smaller group which represents the population

Question 15

Simple Random Sampling

Answer 15

Every member of the population has an equal chance of being picked (ex name from a hat)

Question 16

Systematic random sample

Answer 16

Used when a fixed percent of population is being sampled (uses sampling interval formula)

Question 17

Sampling Interval Formula

Answer 17

Population size / sample size

Question 18

Stratified sample

Answer 18

When group of members shae similar characteristics

Ex. Surveying 25% of each grade

Question 19

Cluster random sample

Answer 19

Use one single group to represent the entire population (ex. Caledonia mcdonalds to represent feelings of mcdonalds employees)

Question 20

Population data

Answer 20

Data gathered from the entire group to which the study is referring. A census.