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WorksheetsDATA ANALYTICS
Total questions: 25
Worksheet time: 50mins
Which statement best describes the trend in the data?
As temperatures increase, ice cream cone sales decrease.
As temperatures increase, ice cream cone sales increase.
There is no trend in the data.
As temperatures decrease, ice cream cone sales increase.
The highest number minus the lowest number in a set of data is called the __________
mean
median
range
maximum
Data Analytics uses __________ to get insights from data.
Statistical figures
Statistical methods
Numerical aspects
None of the mentioned above
Linear Regression is the supervised machine learning model in which the model finds the best fit _____ between the independent and dependent variable.
Linear line
Nonlinear line
Curved line
All of the mentioned above
Amongst which of the following is / are the types of Linear Regression,
Simple Linear Regression
Multiple Linear Regression
Both A and B
None of the mentioned above
Error is the difference between the actual value and Predicted value and the goal is to reduce this difference.
True
False
A graph that uses vertical bars to represent data is called a ____.
Line graph
Bar graph
Scatterplot
All of the mentioned above
Data Analysis is a process of,
Inspecting data
Data Cleaning
Transforming of data
All of the mentioned above
For each value of the _____, the distribution of the dependent variable must be normal.
Independent variable
Depended variable
Intermediate variable
None of the mentioned above
Amongst which of the following is / are not a major data analysis approach?
Business Intelligence
Data Mining
Text Analytics
Predictive Intelligence
If the null hypothesis is false then which of the following is accepted?
Alternative Hypothesis.
Null Hypothesis
Both A and B
None of the mentioned above
_______ refers to the ability to turn your data useful for business.
Value
Variety
Velocity
None of the mentioned above
A good data analytics solution includes a viable self-service ___.
Data mining
Data wrangling
Data warehouse
None of the mentioned above
To glean insights from the data, many analysts and data scientists rely on ___.
Data mining
Data warehouse
Data visualization
All of the mentioned above
Predictive analytics involves taking historical data ---
True
False
______ are the basic building blocks of qualitative data.
Categories
Data chunk
Numeric figures
None of the mentioned above
Tableau is a ________ tool.
Analytical
Visualization
Data Exploration
All of the mentioned above
Text Analytics, also referred to as Text Mining?
True
False
Can be True or False
Can not say
_____ is a method in which data is collected and organized so that one can look at what the data is trying to tell us.
Data collection
Data analysis
Data organization
Data function
Which of the following is not one of the four V’s of Big Data?
Velocity
Volume
Variety
Value
What is the process of transforming structured and unstructured data into a format that can be easily analyzed?
Data Mining
Data Warehousing
Data Integration
Data Processing
Which of the following is a tool used for processing and analyzing Big Data?
Hadoop
PostgreSQL
MySQL
Oracle
What is the process of storing and managing data in a way that allows for efficient retrieval and analysis?
Data Mining
Data Processing
Data Warehousing
Data Integration
What is the process of combining data from multiple sources into a single, unified view?
Data Mining
Data Warehousing
Data Processing
Data Integration
What is the process of cleaning and transforming data before it is used for analysis?
Data Mining
Data Preprocessing
Data Integration
Data Warehousing
