Enhance documentation in 4-random.js to clarify the random number generation process

Author: Monsur0001

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

@@ -7,3 +7,21 @@ 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
+
+num //represents a random integer between the minimum value (1) and the maximum value (100).Math
+
+(maximum - minimum + 1) //represents the range of possible values, which is 100 - 1 + 1 = 100. 
+// This means that there are 100 possible values that num can take on.
+
+Math.random() //generates a random decimal number between 0  and 1. This means that the value of Math.random() 
+// can be any number between 0 and 1, but it will never be exactly 1.
+
+Math.floor(Math.random() * (maximum - minimum + 1)) //multiplies the random decimal number generated by Math.random() 
+// by the range of possible values (100), and then rounds down to the nearest integer using Math.floor(). 
+// This means that the result will be a random integer between 0 and 99.
+
+Math.floor(Math.random() * (maximum - minimum + 1)) + minimum //adds the minimum value (1) to the result of the previous 
+// expression. This means that the final result will be a random integer between 1 and 100, inclusive.
+
+
+