Free CBDA Mining and Predictive Modeling Questions and Answers

Question 1

What is the main objective of data mining in business analytics?

Accepted Answer

To discover useful patterns and insights in data

Answer

To store data indefinitely.

Answer

To remove old data from storage.

Answer

To encrypt business data for security.

Question 2

Which technique is commonly used in predictive modeling?

Accepted Answer

Regression analysis

Answer

Pie chart analysis

Answer

Text formatting

Answer

Time tracking

Question 3

What is overfitting in predictive modeling?

Accepted Answer

When the model captures random noise in the training data

Answer

When the model fits the test data perfectly.

Answer

When the model generalizes well to new data.

Answer

When data is missing from the model.

Question 4

Which metric is commonly used to evaluate predictive models?

Accepted Answer

Accuracy

Answer

Speed

Answer

Color

Answer

Storage

Question 5

Why is data preparation critical for predictive modeling?

Accepted Answer

To ensure model accuracy and reliability

Answer

To reduce model transparency.

Answer

To increase data volume.

Answer

To reduce the time spent on modeling.

Question 6

Which of the following is a classification algorithm?

Accepted Answer

Decision tree

Answer

Clustering

Answer

Sorting

Answer

Summarizing

Question 7

What does training data refer to in predictive modeling?

Accepted Answer

Data used to build and train the model

Answer

Data used after model deployment.

Answer

Data used to test model performance.

Answer

Data excluded from analysis.

Question 8

What is a common goal of segmentation in predictive modeling?

Accepted Answer

To divide data into meaningful categories

Answer

To ignore irrelevant data.

Answer

To merge all data into one group.

Answer

To erase redundant records.

Question 9

Which of the following helps in validating a predictive model?

Accepted Answer

Cross-validation

Answer

Sorting the dataset.

Answer

Encrypting the data.

Answer

Printing results.