Top 250+ Solved Data Mining and Business Intelligence MCQ Questions Answer
Q. _____ is used to map a data item to a real valued prediction variable.
a. Regression
b. Time series analysis
c. Prediction
d. Classification
Q. In _____ , the value of an attribute is examined as it varies over time.
a. Regression
b. Time series analysis
c. Sequence discovery
d. Prediction
Q. In ______ the groups are not predefined.
a. Association rules
b. Summarization
c. Clustering
d. Prediction
Q. Link Analysis is otherwise called as ____.
a. Affinity analysis
b. Association rules
c. Both A & B
d. Prediction
Q. Treating incorrect or missing data is called as________.
a. Selection
b. Preprocessing
c. Transformation
d. Interpretation
Q. Converting data from different sources into a common format for processing is called as____ .
a. Selection
b. Preprocessing
c. Transformation
d. Interpretation
Q. Various visualization techniques are used in_________step of KDD.
a. Selection
b. Transformation
c. Data mining
d. Interpretation
Q. Extreme values that occur infrequently are called as___________.
a. Outliers
b. Rare values
c. Dimensionality reduction
d. All of the above
Q. Box plot and scatter diagram techniques are_________.
a. Graphical
b. Geometri
c. C Icon-base
d. D Pixel-based
Q. _____ is used to proceed from very specific knowledge to more general information.
a. Induction
b. Compression
c. Approximation
d. Substitution
Q. Describing some characteristics of a set of data by a general model is viewed as___________.
a. Induction.
b. Compression
c. Approximation
d. Summarization
Q. ______ helps to uncover hidden information about the data.
a. Induction
b. Compression
c. Approximation
d. Summarization