Cleaning and Preparing Data in Microsoft Azure Flashcards
What is discrete data with no potential relationship with the outcome variable?
Error data
Useless data
Unrelated data
Count data
Useless data
Which data represents characteristics, such as a hockey player’s position, team, and hometown?
Continuous
Categorical
Interval
Binary
Categorical
What data is a sequence of data collected at regular intervals over some period of time?
Audio
Time series
Text
Video
Time series
What is a set of data collected and the world selected from a statistical population by a defined procedure?
Nomial
Ordinal
Random
Sample
Sample
Which sampling divides the elements of the population into small subgroups based on the similarity in such a way that the elements within the group are homogeneous and heterogeneous among the other subgroups formed?
Stratified
Systematic
Multi stage
Cluster
Stratified
Which is a type of sampling that depends of some pre-set standard?
Snowball
Quota
Referral
Purposive
Quota
What is a data processing workflow that converts the structure of disparate data sets into a Common Data Format?
Data cleansing
Extract load transform
Data formatting
Data standardization
Data standardization
What is the process of gathering data and presenting it in a summarized format?
Extract transfer load
Extract load transfer
Data formatting
Data aggregation
Data aggregation
What refers to converting categories into a numeric form so as to convert it into the machine-readable form?
String converting
Label encoding
Hashing
Value converting
Label encoding
What is the task of grouping a set of objects so that objects in the same group are more similar (in some sense) to each other than to those in other groups?
Categorizing
Transforming
Changing
Clustering
Clustering
