DSC119_Chap 1 : Introduction to Data

Which of the following is the CORRECT Big Data characteristics based on the given scenario?  

• Variability

• Variety

• Velocity

• Veracity

Which of these data represents discrete ratio data?

• Age in years

• Seniority level at work

• Sales made in one month

• Income in Ringgit Malaysia

Table 1 shows a list of data. Answer the following question based on the table. Which of the following list corresponds to the data type in Table 1?

• Nominal, Ratio, Interval, Ordinal

• Ordinal, Ratio, Nominal, Interval

• Interval, Nominal, Ordinal, Ratio

• Ratio, Ordinal, Interval, Nominal

What is the CORRECT chart to visualise the distribution of Customer Age data?

• Scatter plot

• Box Plot

• Histogram

• Horizontal Bar Chart

Prior to designing data visualisations, it is critical to identify target audience to communicate the way data scientists want the audience to assimilate the information. What do target audience expect to obtain from the visualisation?

• I & II

• I, II, & III

• II, III, & IV

• I, III &, IV

The following statements explain the role of charts EXCEPT

• II & IV

• I & II

• III & IV

• II & III

  _________ is information boundary specified based on target audience backgrounds, needs and requirements for the need to communicate the information effectively.

• Data visualisation

• Data context

• Data validation

• Data acquisition

Data visualization can be in a form of infographics, charts, and graphs that helps users gain new insights. In many industries, it has been used to help users in expediting decision making with data stories. Based on this perspective, which of the following statements is NOT TRUE about data visualization?

• It combines a set of data into a single page that shows trends, engages users to interact and understand the data easily.

• Data visualization explains a process and record the information in a form of pictures, blueprints, or graphs.

• It conveys meaningless information in a single page that allows the user to misinterpret the message.

• To help people understand the significance of data by placing it in a visual context.

_________ is a type of ________  chart, used to display parts of a whole and change over time.

• Stacked column chart, comparison

• Scatter chart, distribution

• Scatter chart, relationship

• Pie chart, composition

Which of the following refers to continuous attributes?

• I

• II, III

• I, IV

• I, III, IV