Question 1086637
<pre>
The numerator is the number of ways to arrange 
"TATISTIC" between two S's.

over

The denominatior is the number of ways to arrange 
"STATISTICS".

"TATISTIC" has 3 indistinguishable T's and 2 
indistinguishable I's, so, the numerator is 
{{{8!/(3!2!)=3360}}}


"STATISTICS" has 3 indistinguishable S's, 3 
indistinguishable T's and 2 indistinguishable 
I's, so, the denominator is 
{{{10!/(3!3!2!)=50400}}}

Probability = {{{3360/50400=1/15}}}

Edwin</pre>