Chap 8 Flashcards
What is difference between data and information
Data = raw facts
Information = data that has been processed to meaningful
What do A’s in accurate stand for?
Accurate - precise enough for decision to be made
Authoritative - based on trustworthy sources
What do C’s in accurate stand for
Cost-effective - value > cost
Complete - all relevant facts
Whar does U in accurate stand for
Understandable - clearly presented so can be clearly understood
What does R in accurate stand for
Relevant - pertinent to used
What does T in accurate stand for
Timely- should be available within relevant time period
What does E in accurate stand for
Easy to use - accesible
What are the 6 types of data
Qualitative
Quantitative
Continuous
Discrete
Primary
Secondary
What are the 6 types of sampling
Random
Stratified random
Systematic
Cluster
Multistage
Quota
What is Stratified random
-pop split into non-overlapping groups
-1 sample from each group
What is Systematic
every nth
What is Cluster
Population is split into clusters
1/n clusters selected, all items in each cluster
Schools, 10 schools selected, all pupils counted
What is Multistage sampling
Large clusters, population units selected within each cluster
schools, girls, 11 yo counted
Quota
sample of n items are picked, bias, street interviewer
Bar chart
set width, height = value
