3. Probability: Relationship between Events
Difference
Consider the following two events #A# and #B#:
\[\begin{array}{rcl}
A &=& \{6,\,8,\,9,\,10,\,17,\,20\}\\
B &=&\{3,\,8,\,9,\,10,\,15,\,16\}
\end{array}\]
What is the difference of #A# and #B#?
Note: Enter the elements in order from smallest to largest.
#A \,\backslash\, B = \{#, , #\}#
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