For 1.
Positive correlation means if you plot a country's population and land size on a graph. There would be a linear regression line that's sloping upwards.
Since it's a scatterplot, there will be some that fall out of the line, but most of them should be on the line.
It's (A)
For 2.
An outlier is a datapoint that's far, FAR away from the others, so it's (B)
For 3. (A), it's a single line-of-best fit that runs through the middle of the cluster of data points.
Answer:
A motherboard is the main printed circuit board in general-purpose computers and other expandable systems. It holds and allows communication between many of the crucial electronic components of a system
Explanation:
Have a look at the man page for printf:
man 3 printf
The appropriate answer is d. mail merge. Mail merge uses a database of addresses that are used to create pre-addressed mailing labels that are generally used when sending letters to a very large group. This type of application is used by utility companies or any other organizations that requires mass mailings. Mail merge is found in the Microsoft Word application. Excell spreadsheets can also be used to complete tasks similar to that of mail merge.