added random boolean generator

Author: mehediislamripon

Diff for: README.md

@@ -17,4 +17,5 @@
 | Problem - 13  | Write a function to check if an object is empty or not in javaScript?  |
 | Problem - 14  | Write a function to remove array element based on object property?  |
 | Problem - 15  | Get the Middle Character  |
-<!-- | Problem - 15  |   | -->
+| Problem - 16  | Generate  random boolean in JavaScript  |
+<!-- | Problem - 16  |   | -->

Diff for: problem-16.js

@@ -0,0 +1,8 @@
+// get random boolean (true/ false)
+
+console.log(Math.random() >= 0.5);
+console.log(Math.random() < 0.1); //10% probability of getting true
+console.log(Math.random() < 0.4); //40% probability of getting true
+console.log(Math.random() < 0.5); //50% probability of getting true
+console.log(Math.random() < 0.8); //80% probability of getting true
+console.log(Math.random() < 0.9); //90% probability of getting true