Enhance random number generation explanation and documentation

Author: Darkidd77

Sprint-1/1-key-exercises/4-random.js

@@ -7,3 +7,14 @@ const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 // Try breaking down the expression and using documentation to explain what it means
 // It will help to think about the order in which expressions are evaluated
 // Try logging the value of num and running the program several times to build an idea of what the program is doing
+
+console.log(num);
+
+// I understand that Math.random() generates a random number between 0 and 1, 
+// and multiplies it by the range (maximum - minimum + 1) to get a number in that range.
+// and then adds the minimum to shift the range to start from the minimum value 1 -> 100 rather than 0 -> 99.
+// finally, Math.floor() rounds the number down.
+
+// docs for Math.random() and Math.floor() I used:
+// https://www.google.com/search?q=Math.random+mdn
+// https://www.google.com/search?q=Math.floor+mdn