Question ID 16144	What is a property of windows functions in SQL commands?
Option A	Used to calculate moving averages over various intervals
Option B	Group rows into a single output row
Option C	Used between the keywords FROM and WHERE in a SELECT command
Option D	Ordering data within a window is not required
Correct Answer	A

Description
Update Date and Time 2017-12-14 04:57:30

 

Question ID 16145	Refer to the exhibit. You have created a density plot of purchase amounts from a retail website as shown. What should you do next?
Option A	Recreate the plot using the barplot() function
Option B	Use the rug() function to add elements to the plot
Option C	Recreate the density plot using a log normal distribution of the purchase amount data
Option D	Reduce the sample size of the purchase amount data used to create the plot
Correct Answer	C

Description
Update Date and Time 2017-12-14 04:58:40