um, for X to Y is a loop, which means it uses each and every number
you're looking for the function
random integer between X and Y
or
random real between X.x and Y.y
to make a bi-random statement u use an if statement
if (random integer between 1 and 3) < 2 then
"you got low 66%"
else
"you got high 33%"
as for multiple choices you need to store the random number in a variable first and then do the same checks to the variable
o, and theres also the option of using the function
random percent
which gives u a number between 0.00 and 1.00