I need to review sets for my probability and statistical inference course.
I do not understand the meaning of the following:
\begin{gathered}
A_k = \left\{ {x:\frac{{10}}
{{k + 1}} \leqslant x \leqslant 10} \right\},k = 1,2,3,.... \hfill \\
\hfill \\
\bigcap\limits_{k = 1}^8 {A_k } =...