B version is generally aimed at science students, and A version is generally aimed at liberal arts students.

Compared with version A, version B contains the spatial coordinates of spatial geometry.

The content of probability analysis and probability statistics

1.？ Version A and version B are distinguished by "region", that is, one version of teaching materials is generally used in the same region.

2. version b is more difficult and is generally used by science students.

3. Edits of version A and version B are different, which leads to some differences.

4. The following two pictures are a comparative study of the necessary statistical contents of version A and version B of the new curriculum standard textbook for senior high school mathematics.

Version a:

Version b:

In a word, version B is more difficult than version A and more suitable for science students.