Picture of event ^
Hope that clears it up
Its not make sense to me..
random works like that "random(value1,value2)"
You just set the value1 and value2 to random.
Construct it calculate the random number -15,15 and the 165,195 and gives you a random number between the 2 calculated numbers.
Its the same with random(-15,195) this will give you the same result.
"choose(value1,value2,value3 etc)" it choose one of this values even if this values are random like
It choose one of this 3 number , from 0 to 100 or from 150 to 250 or from 350 to 450.