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BUSINESS CORE DATA ANALYTICS QUIZZES TEST BANK QUESTIONS AND ANSWERS MODULE 1, MODULE 2, MODULE 3, MODULE 4, MODULE 5 REUPDATED SOLUTION HARVARD UNIVERSITY

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BUSINESS CORE DATA ANALYTICS QUIZZES TEST BANK QUESTIONS AND ANSWERS MODULE 1, MODULE 2, MODULE 3, MODULE 4, MODULE 5 REUPDATED SOLUTION HARVARD UNIVERSITY

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DATA ANALYTICS
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DATA ANALYTICS











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Institution
DATA ANALYTICS
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DATA ANALYTICS

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Uploaded on
March 29, 2025
Number of pages
39
Written in
2024/2025
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BUSINESS CORE DATA
ANALYTICS QUIZZES TEST
BANK




Module 1: Introduction to Data Analytics
Quiz Questions:
What are the four types of data analytics?
a) Descriptive, Diagnostic, Predictive, Prescriptive
b) Analytical, Statistical, Predictive, Machine Learning
c) Structured, Unstructured, Semi-structured, Big Data
d) Business Intelligence, AI, Machine Learning, Data Science

,Answer: a) Descriptive, Diagnostic, Predictive, Prescriptive


Which of the following best defines data analytics?
a) The process of collecting data
b) The use of data to make informed business decisions
c) The visualization of data
d) The storage of data in databases


Answer: b) The use of data to make informed business decisions


Which type of analytics helps in identifying trends and patterns in historical data?
a) Prescriptive analytics
b) Predictive analytics
c) Descriptive analytics
d) Diagnostic analytics


Answer: c) Descriptive analytics


Module 2: Data Collection and Cleaning
Quiz Questions:
Which of the following is NOT a common data collection method?
a) Surveys
b) SQL queries
c) Web scraping
d) Machine learning algorithms


Answer: d) Machine learning algorithms


What is the primary goal of data cleaning?
a) To remove all missing values
b) To make data consistent and usable for analysis
c) To delete all duplicate records

,d) To apply machine learning models


Answer: b) To make data consistent and usable for analysis


Which of the following is a common issue addressed in data cleaning?
a) Data visualization
b) Predictive modeling
c) Duplicate records and missing values
d) Regression analysis


Answer: c) Duplicate records and missing values


Module 3: Data Visualization and Interpretation
Quiz Questions:
Which chart type is best for showing trends over time?
a) Pie chart
b) Bar chart
c) Line chart
d) Scatter plot


Answer: c) Line chart


Which tool is commonly used for data visualization?
a) SQL
b) Excel
c) Tableau
d) Both b and c


Answer: d) Both b and c


What is the primary purpose of a dashboard in data analytics?
a) To store large datasets

, b) To visualize and monitor key metrics in real time
c) To generate complex SQL queries
d) To analyze machine learning algorithms


Answer: b) To visualize and monitor key metrics in real time


Module 4: Predictive Analytics and Machine Learning
Quiz Questions:
What is the main purpose of predictive analytics?
a) To understand past data
b) To identify the root cause of an event
c) To predict future outcomes based on historical data
d) To clean raw data


Answer: c) To predict future outcomes based on historical data


Which machine learning algorithm is commonly used for classification tasks?
a) Linear Regression
b) K-Means Clustering
c) Decision Trees
d) Principal Component Analysis (PCA)


Answer: c) Decision Trees


Which of the following best defines overfitting in machine learning?
a) When the model performs well on training data but poorly on new data
b) When the model generalizes well across all datasets
c) When the model has too little data to learn from
d) When the model makes predictions without using any historical data


Answer: a) When the model performs well on training data but poorly on new data

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