Welcome to Chad Worley's statistics questions. Please also check out this
project's github.
These problems were originally used in Moodle, but they
should be easy to export to many other formats (see
R/exams)... feel
free to reuse this work in a copyleft fashion.
You may find
these Javascript apps helpful.
If the math equations are small, try clicking on an equation; you should be able to change your zoom settings.