Data Analytics Quiz

The characteristics of a useful input are ... (choose 2 correct answers)

• independent to target

• relevant to target

• normal distributed

• independent to other inputs

Unsupervised learning involves a label. Unsupervised modelling doesn't need a target. Unsupervised learning is for prediction.

Match the questions below with the types of data analytics. What is happening? What should I do? Why is it happening? What is likely to happen?

• Descriptive analytics

• Prescriptive analytics

• Diagnostic analytics

• Predictive analytics

Which of the following statement about the applications of predictive modelling is true?

A sample from a population should be which of the following?

Assign the type of data for the following items. Customer particulars in Excel spreadsheet

• Structured data

• Unstructured data

Log transformation can be used to reduce the skewness of a variable distribution

• True

• False

Which type of graph is used when there are too many groups in a variable?

• Bar chart

• Line chart

• Scatter plot

• Tree map

Which of the following is NOT a good practice of dashboard design?

• Answer too many questions with a single dashboard

• Use common metrics

• Viewing your dashboard as your users will

• Know your audiences.

Which type of graph is used to visualize sales over time?

• Bar chart

• Line chart

• Scatter plot

• Tree map