R programming

A player in a game must roll either a D4 (a 4-sided die) or a D6 (a 6-sided die), depending on the outcome of a coin flip. What is their expected die roll?

**HINT:** Inside your function, make two calls to the `sample()` function -- one corresponding to the coin flip, and the other to the die roll. Use the output of one of the `sample()` functions as an input to the other.