A sample of the paramedical fees charged by clinics revealed these amounts: $55, $49, $50, $45, $52, and $55. what is the median charge? $52.00 $55.00 $51.00 $47.50

The median charge is the middle charge so we need to put them in order
 
$45, $49, $50, $52, $55, $55 so since there is no middle number (because it isn't odd) we need to add the middle two and then average.

So 50 + 52 = 102 / 2 = 51.
The answer is $51.00. 
I hope this helps :)