Which of the following describes a blog?

A. A place on the internet that connects multiple pages with hyperlinks
B. A type of information sharing designed to share facts
C. A collection of articles written by journalists
D. A web page that shares personal thoughts and observations

D. A web page that shares personal thoughts and observations

The stem leaf plot below shows the total number of points difference gymnasts earned in a gymnastics competition. How many gymnasts scored less than 50 points?

Stem | leaf
6 | 1 2 2 6
5 | 1 4 6 8 9
4 | 1 2 2 7 8 9
3 | 6 9
A. 4
B. 6
C. 7
D. 8

There are 6 gymnasts who scored in the 40s (4 | 1 2 2 7 8 9), so the answer is $\boxed{\textbf{(B)}\ 6}$.

The correct answer is D. A web page that shares personal thoughts and observations.

To determine the correct answer, we can break down the options and analyze each one:

A. A place on the internet that connects multiple pages with hyperlinks: This describes a website or a web page, where hyperlinks are used to connect different pages. While a blog may have multiple pages with hyperlinks, this description is too broad to specifically define a blog.

B. A type of information sharing designed to share facts: While blogs can share facts and information, it is not the sole purpose of a blog. Blogs are more commonly associated with personal opinions, experiences, and reflections.

C. A collection of articles written by journalists: This is closer to a news website or a collection of articles, rather than a blog. While some professional journalists may have blogs, blogging is not solely limited to journalists, and a blog can be operated by anyone.

D. A web page that shares personal thoughts and observations: This is the most accurate description of a blog. Blogs are typically written by individuals or a group of people, and they provide a platform to share personal experiences, thoughts, opinions, or observations on specific topics.

Therefore, option D accurately describes a blog as a web page that shares personal thoughts and observations.