Data Analytics Ultimate Quiz! Trivia

40 Questions | Total Attempts: 75

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Data Analytics Ultimate Quiz! Trivia - Quiz


Questions and Answers
  • 1. 
    What skills required in Data Science?
    • A. 

      Statistics / Mathematics skills

    • B. 

      Coding / Hacking skills

    • C. 

      Domain Knowledge / Business Knowledge

    • D. 

      All the above

  • 2. 
    Which of the following best describes the principal goal of data science?
    • A. 

      To collect and archive exhaustive data sets from various source systems for corporate record keeping uses.

    • B. 

      To mine and analyze large amounts of data to uncover information that can be leveraged for operational improvements and business gains.

    • C. 

      To prepare data for analysts to use as part of analytics applications.

    • D. 

      All the above

  • 3. 
    Which of the following is performed by a data scientist?
    • A. 

      Create reproducible code

    • B. 

      Define the question

    • C. 

      Challenge results

    • D. 

      All the above

  • 4. 
    Which of the following is the most widely used language for data science?
    • A. 

      Ruby

    • B. 

      Java

    • C. 

      Python

    • D. 

      C++

  • 5. 
    Which of the following is not a step in data analysis?
    • A. 

      EDA

    • B. 

      Obtaining data

    • C. 

      Cleaning data

    • D. 

      Securing data

  • 6. 
    Which of the following step is performed by data scientist after acquiring the data?
    • A. 

      Data Integration

    • B. 

      Data Cleansing

    • C. 

      Data Replication

    • D. 

      All the above

  • 7. 
    What is the simplest class of analytics?
    • A. 

      Descriptive

    • B. 

      Predictive

    • C. 

      Prescriptive

    • D. 

      All the above

  • 8. 
    Point out the correct statement:
    • A. 

      Raw data is original source of data

    • B. 

      Preprocessed data is original source of data

    • C. 

      Raw data is the data obtained after processing steps

    • D. 

      None of the above

  • 9. 
    The below image is an example of:
    • A. 

      Name box

    • B. 

      Formula bar

    • C. 

      Column heading

    • D. 

      Row heading

  • 10. 
    The below image is an example of
    • A. 

      Cell

    • B. 

      Column heading

    • C. 

      Spreadsheet

    • D. 

      Formula bar

  • 11. 
    Which is the most suitable chart for discrete data?
    • A. 

      Bar chart

    • B. 

      Line chart

  • 12. 
    Which is the most suitable chart for continuous data?
    • A. 

      Line chart

    • B. 

      Pie chart

  • 13. 
    What is the Excel feature that quickly allows us to show trend information in a single cell?
    • A. 

      Pivot table

    • B. 

      VLOOKUP

    • C. 

      Sparklines

    • D. 

      Conditional formatting

  • 14. 
    How can you easily perform a summary over a large detailed data set?
    • A. 

      Pie chart

    • B. 

      Pivot table

    • C. 

      Formula

    • D. 

      Combo chart

  • 15. 
    Which Excel feature can you use to ensure that users do not enter irrelevant data?
    • A. 

      Autofill

    • B. 

      VLOOKUP

    • C. 

      Data validation

    • D. 

      Formula

  • 16. 
    Which of the following is the correct formula to add the values in cell A1 to A3?
    • A. 

      A1+A2+A3

    • B. 

      =SUM(A1:A3)

    • C. 

      SUM(A1,A2,A3)

    • D. 

      =1+2+3

  • 17. 
    In what follows, S is the sample space of the experiment in question and E is the event of interest. n(S) is the number of elements in the sample space S and n(E) is the number of elements in the event E. A die is rolled, find the probability that an even number is obtained.
    • A. 

      1/2

    • B. 

      4/6

    • C. 

      3/2

    • D. 

      5/6

  • 18. 
    Two coins are tossed, find the probability that two heads are obtained. Note: Each coin has two possible outcomes H (heads) and T (Tails).
    • A. 

      1/2

    • B. 

      3/4

    • C. 

      1/4

    • D. 

      1

  • 19. 
    Which of these numbers cannot be a probability?
    • A. 

      0

    • B. 

      0.452

    • C. 

      1.0001

    • D. 

      20%

  • 20. 
    What is the probability of the shaded sector from the spinner below?
    • A. 

      1/3

    • B. 

      3/4

    • C. 

      2/6

    • D. 

      2/5

  • 21. 
    A jar contains 3 red marbles, 7 green marbles and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is white?
    • A. 

      1/2

    • B. 

      4/20

    • C. 

      2/6

    • D. 

      7/10

  • 22. 
    The blood groups of 200 people are distributed as follows: 50 have type A blood, 65 have B blood type, 70 have O blood type and 15 have type AB blood. If a person from this group is selected at random, what is the probability that this person has O blood type?
    • A. 

      5/10

    • B. 

      85/200

    • C. 

      70/200

    • D. 

      120/200

  • 23. 
    A die is rolled, find the probability that the number obtained is greater than 4.
    • A. 

      1/3

    • B. 

      4/6

    • C. 

      2/3

    • D. 

      1/6

  • 24. 
    The sample space S of the experiment in question 8 is shown below: A card is drawn at random from a deck of cards. Find the probability of getting a queen.
    • A. 

      1/14

    • B. 

      3/12

    • C. 

      4/13

    • D. 

      1/13

  • 25. 
    The expected value or _______ of a random variable is the center of its distribution.
    • A. 

      Mode

    • B. 

      Median

    • C. 

      Mean

    • D. 

      Bayesian inference

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