R.V. Poppin, the concession stand manager for the local hockey rink, just had 2 cancellations on his crew.This means that if more than 72,000 people come to tonight's hockey game, the lines for hot dogs will constitute a disgrace to Mr. Poppin and will harm business at future games.Mr. Poppin knows from experience that the number of people who come to the game is normally distributed with a mean () of 67,000 and standard deviation()of 4,000 people.What formula should he use to determine the probability that there will be more than 72,000 people at the game?