In ANOVA, what is the null hypothesis for k population means?
In K-means clustering, what is a graph of the WSS versus the value of K used to help determine?
What is the primary role of a business intelligence analyst on an analytics project?
Consider this SQL statement: SELECT product, avg(prod_cost) FROM product_detail GROUP BY product. The GROUP BY clause implies what type of function?
You build a decision tree to classify five different types of customers based on their browsing history from a sample of 500. The resulting decision tree has 17 layers. One of the leaf nodes has only three customers.
What do you conclude?