D-DS-FN-23 Exam Question 91
In time series analysis, what function is examined to identify the order of the moving average component of an ARIMA model?
D-DS-FN-23 Exam Question 92
The graphic shows the values for the input Boolean attributes "A", "B", and "C". In addition, the graphic shows the values for the output attribute "class".
Which Decision Tree is valid for the data?
Which Decision Tree is valid for the data?
D-DS-FN-23 Exam Question 93
Consider this SQL statement:
SELECT product, prod_cost, avg(prod_cost) OVER (PARTITION BY product)
FROM product_detail
The OVER clause makes this what type of function?
SELECT product, prod_cost, avg(prod_cost) OVER (PARTITION BY product)
FROM product_detail
The OVER clause makes this what type of function?
D-DS-FN-23 Exam Question 94
Consider the following text:
"Aren't you glad that there are all these toys. Are you taking any for the children?" What is the term frequency for the word are in the text with both case folding and a tokenizer applied to punctuation?
"Aren't you glad that there are all these toys. Are you taking any for the children?" What is the term frequency for the word are in the text with both case folding and a tokenizer applied to punctuation?
D-DS-FN-23 Exam Question 95
You have created a Logistic Regression model to predict customer churn for your company. The company's Marketing department wants to use your model to identify at-risk customers and offer incentives to keep them from leaving.
Using two different thresholds for the model provides the two confusion matrices shown in the graphic.
Marketing understands the relative costs of missing at-risk customers versus offering incentives to customers who are not at risk. Therefore, you need their advice on how to set the appropriate threshold on the churn model.
You are meeting with the Marketing team. In the meeting, you plan to state: "Raising the threshold from 0.5 to 0.75 reduces the number of unnecessary incentives that can be offered, at the cost of missing more of the customers who churned." What is the most appropriate visual to reinforce this statement?
Using two different thresholds for the model provides the two confusion matrices shown in the graphic.
Marketing understands the relative costs of missing at-risk customers versus offering incentives to customers who are not at risk. Therefore, you need their advice on how to set the appropriate threshold on the churn model.
You are meeting with the Marketing team. In the meeting, you plan to state: "Raising the threshold from 0.5 to 0.75 reduces the number of unnecessary incentives that can be offered, at the cost of missing more of the customers who churned." What is the most appropriate visual to reinforce this statement?