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WorksheetsIntroduction to Data Science
Total questions: 10
Worksheet time: 10mins
Q1. Which of the following is the most accurate definition of data science?
a) Data science is extracting meaning from large data sets in order to provide insights to support decision-making
b) Data science is using computers to analyse data and to perform calculations on the data to produce information
c) Data science is performing experiments and recording the data produced by those experiments
d) Data science is writing code to make sure that any inaccuracies in data sets are spotted and removed (cleaned)
Which of the following step is performed by data scientist after acquiring the data ?
Data Integration
Data Replication
Data Cleansing
All of the Mentioned
The process of evaluating data through analytical and statistical tools
Data Mining
Data Analysis
Data Exploration
Data Visualization
Which of the following is one of the key data science skill ?
Statistics
Machine Learning
Data Visualization
All of the Mentioned
This picture shows a result of ...
Supervised Learning: Classification
Unsupervised Learning: Regression
Unsupervised Learning: Prediction
Supervised Learning: Regression
Machine Learning has various function representation, which of the following is not numerical functions?
Linear Regression
Support Vector Machines
Neural Network
Case-based
All data is labeled and the algorithms learn to predict the output from the input data
Dataset
Classifiers
supervised learning
unsupervised learning
What are the two types of Supervised Learning?
Classification
Declassification
Progression
Regression
Which is FALSE about Decision Tree
We can extract RULES from the Decision Tree
It is good to find relationship of non-linearly correlated data
it has to formed from a binary tree
The output can be easily understood by a layman
