Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
27 Cards in this Set
- Front
- Back
Descriptive statistics
|
____________ is the term given to the analysis of data that helps describe, show or summarize data in a meaningful way such that, for example, patterns might emerge from the data ex. Min, mean, max, etc. |
|
Statistics
|
and it is a way of reasoning. |
|
Types of Data
|
Data Warehouses, transactional data, big data, and data mining are all _____________. |
|
physical places
|
data warehouses are _______________
|
|
transactional data
|
________________ is data that can be observed
|
|
data mining
|
______________ is predictive analytics used to find relationships
|
|
Business Analytics
|
_______________ is any use of data and statistical analysis such as predictive and descriptive. |
|
predictive analysis
|
________________ tries to predict future transactions. |
|
descriptive analysis
|
____________ tries to describe populations using samples. |
|
variations, business decisions
|
Understanding _____________ is essential to making ________________. |
|
Who?
|
the ________________ of data contexts is the population of interest.
|
|
What?
|
the ________________ of data contexts that is: what is the variable?
|
|
Why?
|
the ________________ of data contexts is: Why are you doing the study? What do you want to determine? and the problem at hand.
|
|
Qualitative and Quantitative
|
the types of variables are __________ and _______________. |
|
Qualitative
|
_______________ variables are categorical (can be put into categories) and descriptive.
|
|
Quantitative
|
______________ variables are numerical and have scatterplot values. |
|
nominal
|
Data is ________________if there is no natural order between the categories (eg eye colour)
|
|
ordinal
|
Data is _____________ if an ordering exists (eg exam results, socio-economic status)
|
|
Cross Sectional Data
|
________________ is data collected at 1 moment in time. |
|
Times Series Data
|
_________________ looks at data over time and it could help forecast future sales. |
|
Inferential Statistics
|
________________ is statistics when we use a sample to make decisions and draw conclusions to prove a point.
|
|
Surveys, Meta Data, observational (transactional), and experiments
|
_______________, _______________, ________________, and ______________ are all ways to collect data. |
|
respondents
|
_____________ are people who answer survey's.
|
|
participants
|
____________ people who participate in an experiment.
|
|
experimental units
|
____________________ are animals, plants, and websites. |
|
Relational database
|
_______________- is 2 or more data tables related so the information can spread across them |
|
Identifier variables
|
_________________ are key codes such as the code (CSE). |