Week 2 - MonkeyPlay/-IBM-Data-Science-Professional-Certificate GitHub Wiki

Quiz

Data Mining TOTAL POINTS 5 1.Question 1 According to the reading, the output of a data mining exercise largely depends on: 1 point

The quality of the data.

2.Question 2 When data are missing in a systematic way, you can simply extrapolate the data or impute the missing data by filling in the average of the values around the missing data. 1 point

False.

3.Question 3 What is an example of a data reduction algorithm? 1 point

Principal Component Analysis (PCA)

4.Question 4 After the data are appropriately processed, transformed, and stored, what is a good starting point for data mining? 1 point

Data Visualization.

5.Question 5 In-sample forecast is the process of formally evaluating the predictive capabilities of the models developed using observed data to see how effective the algorithms are in reproducing data. 1 point

True.