Whenever I try to use `RANDBETWEEN(Value1,Value2)`, it almost equally distribute the numbers randomly.  

How to generate random number in an unequal manner?  

Example - 

[![enter image description here](https://i.stack.imgur.com/JIXmX.png)](https://i.stack.imgur.com/JIXmX.png)

The above randbetween formula distributed both "Yes" & "No" equally.
And I want more of "Yes" than "No"