@mmcdara The following seems "simple" to me.
Applying straight map to a datatype=float rtable gets rid of that datatype. (It's elementwise operations like round~ that you might wish/need to avoid for this goal. This is one of several important ways that map and elementwise ~ are different in behaviour.)
Maple 2015.2, X86 64 LINUX, Dec 20 2015, Build ID 1097895
S := Sample(Binomial(10, 1/3), 3);
S := [5., 5., 2.]
[5, 5, 2]
This now seems quite tangential to the original Question.
In my Answer I just wanted to show using evalf to get several places more accuracy than with evalf, for the Quantile of the left tail of ChiSquare. I didn't mean to start a thread on UseHardwareFloats or various ways of mapping over hardware datatype rtables, etc. Sorry for any confusion. Please branch it off into a separate thread if you'd like to discuss that in detail.