Online Access Free DEA-7TT2 Exam Questions

Which characteristic applies only to Business Intelligence as opposed to Data Science?
Response:

• A.Uses predictive modeling techniques
• B.Uses only structured data
• C.Uses large data sets
• D.Supports solving "what if" scenarios

You are analyzing data in order to build a classifier model. You discover non-linear data and discontinuities that will affect the model. Which analytical method would you recommend?
Response:

• A.ARIMA
• B.Logistic Regression
• C.Linear Regression
• D.Decision Trees

Your organization has a website where visitors randomly receive one of two coupons. It is also possible that visitors to the website will not receive a coupon.
You have been asked to determine if offering a coupon to visitors to your website has any impact on their purchase decision. Which analysis method should you use?
Response:

• A.One-way ANOVA
• B.Association rules
• C.K-means clustering
• D.Student T-test

Which analytic technique would be appropriate to estimate blood pressure based on age and weight?
Response:

• A.Naive Bayesian classification
• B.K-means clustering
• C.Linear regression
• D.Time series analysis

When would you prefer a Naive Bayes model to a logistic regression model for classification?
Response:

• A.When all the input variables are numerical.
• B.When you need to estimate the probability of an outcome, not just which class it is in.
• C.When some of the input variables might be correlated.
• D.When you are using several categorical input variables with over 1000 possible values each.