Vudu is a movie video-on-demand service that, until recently…

Vudu is a movie video-on-demand service that, until recently, was owned by Walmart. While most streaming services charge a monthly fee for unlimited use, Vudu charges for each movie watched. Would offering unlimited streaming for a monthly fee likely yield more or less profit for Vudu than charging for movies individually?

In the final round of a TV game show, contestants have a cha…

In the final round of a TV game show, contestants have a chance to increase their current winnings of $1 million dollars to $2 million dollars. If they are wrong, their prize is decreased to $500,000. The contestant thinks his guess will be right 50% of the time. Should he play? What is the lowest probability of a correct guess that would make playing profitable?