Question 1180188
<pre>
"AND" reminds us to multiply, "OR" reminds us to add.

Probability of: 

Head AND (1 OR 2) =

{{{P(H)*(P(1)+P(2)^"") = (1/2)(1/6+1/6) = (1/2)(2/6) = (1/2)(1/3) = 1/6}}}

Edwin</pre>