Access your current level in Data Analysis

  • The result of the quiz will determine the level to begin.
  • The Quiz contains 12 questions. All questions are mandatory.
  • You will be able to reattempt the quiz after 6 months.

Access your current level in Data Analysis

  1. Which of the following data sets is best summarised by the mean?

  2. Which of the following is true of the mode of a data set?

  3. Which of the following weaknesses of the mean is metigated by the median?

  4. Which are requirements for matrix multiplication?

  5. Given the numbers in descending order, what is the median value? 9, 6, 5, 3, 2, 0

  6. Which of these statements accurately represents the relationship between variance and standard deviation?

  7. Match the data management category with its description.
    1. Reference Data Management
    2. ETL
    3. Visualization and Analytics
    4. Master Data Management
    1. Organizational Data
    2. Standardized data, static information
    3. Dashboards and real-time results
    4. Data warehousing, transformation, extraction

  8. Reducing the number of fields in the output is an example of what type of partitioning?

  9. What would be the output of this code snippet in a Jupyter Notebook cell using the R kernel?

    V <- c(NA, 1:5)

    mean(v, na.rm=TRUE)

  10. Assuming your dataframe is named 'mpg', which of these statements will produce the mean value of the 'weight' column?

  11. Invoke the following ggplot function.

    ggplot(, aes(x=Income))

    However, you get an empty plot, and nothing is drawn. What could be the possible cause?

  12. What is the Null Hypothesis signified as?