Fix typo in random number generation explanation and enhance comments for clarity

Author: AkliluMihtsun

Sprint-2/1-key-exercises/4-random.js

@@ -14,7 +14,11 @@ console.log(num);
 // var maximum , the Math.random() method and Math.floor() method
 // This expression can be broken down in to the following main steps
 // 1. the inner parentheses (maximum - minimum + 1) is calculated because that is the inner most expression
-// 2. then the Math.random() generates random number which is greater than or equal to 0 but less than 1 number and multiply with the result of (maximum - minimum + 1)
+// 2. then the Math.random() generates random number which is greater than or equal to 0 but less than 1  and multiply with the result of (maximum - minimum + 1)
 // 3. then the Math.floor() rounds down the result of (Math.random() * (maximum - minimum + 1)) to the nearest whole number
 // 4. finally the minimum is being added to the down rounded whole number and the variable num holds the value
 // after running the program the value of num looks like this 51,8,85,8,99,21 random numbers that are greater than or equal to 1 but less than 100
+
+// the expression maximum - minimum + 1 determines how many possible whole numbers can the random method generate
+// and it affects the range by stretching it out to be exactly as wide as the total count of numbers we need.
+// the + minimum at the end makes the starting point for our random numbers to be the value of the minimum instead of 0