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WorksheetsQ1 W3-4
Total questions: 15
Worksheet time: 8mins
Which type of analytics focuses on understanding past events?
Descriptive
Predictive
Prescriptive
Diagnostic
A company uses regression analysis to estimate future sales. Which type of analytics is this?
Descriptive
Predictive
Prescriptive
Diagnostic
Which analytics type is most useful for recommending optimal decisions?
Prescriptive
Descriptive
Predictive
Diagnostic
Which tool is commonly used in Descriptive Analytics?
Python Scikit-Learn
SQL and Tableau
MATLAB
IBM CPLEX
Predictive analytics is primarily concerned with:
Explaining why something happened
Summarizing past data
Forecasting future outcomes
Recommending the best decision
Prescriptive analytics often uses which technique?
Data visualization
Optimization algorithms
Frequency counts
Data aggregation
Which of the following best describes Descriptive Analytics?
"What will happen?"
"What should we do?"
"Why did it happen?"
"What happened?"
A telecom company predicts which customers are most likely to cancel subscriptions. This is an example of:
Descriptive Analytics
Prescriptive Analytics
Predictive Analytics
Diagnostic Analytics
Which of the following tools is NOT commonly used in predictive analytics?
R
SPSS
Tableau
Scikit-Learn
In prescriptive analytics, simulation models are used to:
Display past data trends
Forecast customer churn
Test strategies under different conditions
Calculate averages
Which of the following is NOT part of data preparation?
Normalization
Hyperparameter tuning
Deduplication
Imputation
Which data type best describes customer emails and chat logs?
Structured
Semi-structured
Unstructured
Normalized
A bank categorizing customers as High, Medium, or Low spenders is an example of:
Feature engineering
Model validation
Deployment
Data collection
Logistic regression is mainly used for:
Predicting continuous values
Binary classification problems
Clustering groups
Reducing dimensions
Which step ensures a model is not overfitting or underfitting?
Deployment
Data cleaning
Validation
Feature engineering
