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Aalim Muhammed Salegh College Of Engineering
Worksheets
Department Of Artificial Intelligence and Data Science Name
Data Science Class
Total questions: 20
Worksheet time: 10mins Date
1. Which of the following is performed by Data Scientist ?
a) Define the question b) Create reproducible code
c) All of the Mentioned d) Challenge results
2. Which of the following approach should be used to ask Data Analysis question ?
a) Find out answer from dataset without b) Find only one solution for particular
asking question problem
c) Find out the question which is to be d) None of the mentioned
answered
3. Which of the following is one of the key data science skill ?
a) Statistics b) Machine Learning
c) All of the Mentioned d) Data Visualization
4. Point out the correct statement:
a) Raw data is the data obtained after b) Raw data is original source of data
processing steps
c) None of the Mentioned d) Preprocessed data is original source of data
5. Which of the following is the top most important thing in data science ?
a) data b) answer
c) none of the Mentioned d) question
6. Which of the following term is appropriate to the above figure ?
a) Large Data b) None of the mentioned
c) Big Data d) Dark Data
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7. Q1. Which of the following is the most accurate definition of data science?
a) c) Data science is performing experiments b) d) Data science is writing code to make sure
and recording the data produced by those that any inaccuracies in data sets are
experiments spotted and removed (cleaned)
c) a) Data science is extracting meaning from d) b) Data science is using computers to
large data sets in order to provide insights analyse data and to perform calculations
to support decision-making on the data to produce information
8. Q2. Which of the following best describes a data visualisation?
a) A. Presenting related data so that a user b) D. A collection of graphs that tell a story
can see individual items of data when put together
c) B. Making sure that data is accessible and d) C. A visual representation that
that no data is hidden communicates relationships among the
data
9. Q4. What is meant by a correlation?
a) A. The relationship between two or more b) C. When there is a set of data that doesn’t
variables lie in the normal or expected range
c) D. When data is placed in a graph d) B. When there is an upward trend in a
graph
Q6. The following graph shows the annual average temperatures recorded
by a weather station over a period of 20 years. Identify the outlier in the
10.
data.
a) C. Point C b) D. Point D
c) A. Point A d) B. Point B
11. Q7. Which of the following is the correct order of the investigative cycle?
a) D. Problem, plan, data, analysis, conclusion b) C. Plan, problem, analysis, data, conclusion
c) B. Conclusion, plan, problem, data, Analysis d) A. Problem, data, plan, analysis, conclusion
12. Q8. In which step of the cycle would you pose the question(s) that you will use data to help
you answer?
a) A. Data b) B. Analysis
c) C. Plan d) D. Problem
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13. Q9. In which step of the cycle would you cleanse the data?
a) D. Problem b) C. Plan
c) A. Data d) B. Analysis
14. Q10. In which step of the cycle would you work out where the data will come from or how you
will collect it?
a) C. Plan b) D. Problem
c) A. Data d) B. Analysis
15. Q11. How many students spent 7 hours doing homework that week?(1
mark)
a) 6 b) 5
c) 7 d) 4
Q14. What was the difference between the cars sold on Monday and
16. Tuesday than the cars sold on Friday and Saturday? (1 mark)
a) 4 b) 2
c) 1 d) 3
Q15. What is name of the chart pictured below? (1 mark)
17.
a) Line chart b) Graph chart
c) Pie chart d) Bar chart
Q16. What is name of the chart pictured below? (1 mark)
18.
a) Bar chart b) Line chart
c) Graph chart d) Pie chart
19. What is Big Data?
a) Data with a large size b) Data made with a big purpose
c) Data about people who are big d) Data with the word 'big' in it
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20. The process of evaluating data through analytical and statistical tools
a) Data Analysis b) Data Visualization
c) Data Exploration d) Data Mining
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Answer Keys
1. c) All of the Mentioned 2. c) Find out the question 3. c) All of the Mentioned
which is to be answered
4. b) Raw data is original 5. d) question 6. c) Big Data
source of data
7. c) a) Data science is 8. d) C. A visual 9. a) A. The relationship
extracting meaning representation that between two or more
from large data sets in communicates variables
order to provide relationships among
insights to support the data
decision-making
10. a) C. Point C 11. a) D. Problem, plan, data, 12. d) D. Problem
analysis, conclusion
13. c) A. Data 14. a) C. Plan 15. a) 6
16. a) 4 17. d) Bar chart 18. b) Line chart
19. a) Data with a large size 20. a) Data Analysis
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