3. Probability: Relationship between Events
Intersection
Consider the following two events #A# and #B#:
\[\begin{array}{rcl}
A &=& \{3,\,5,\,9,\,10,\,13,\,15\}\\
B &=&\{2,\,3,\,10,\,15,\,19,\,20\}
\end{array}\]
What is the intersection of #A# and #B#? Note: Enter the elements in order from smallest to largest.
#A \,\cap\, B = \{#, , #\}#
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