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Powerball Background information: on October 4, 2015 the format of how to play Powerball

changed. There used to be 59 white balls to choose from and 35 red balls to choose from. This

is how to play today: 5 white balls are drawn out of a drum with 69 balls numbered 1 to 69, and

one red ball is chosen out of a drum with 26 red balls numbered 1 to 26.

1. Why do you think this change occurred?

2. What do you think happened to the total number of possible combinations for playing

the winning numbers? Did it increase or decrease?

3. In fact, sales of lottery tickets had declined over the last few years which is why this

change happened. On Saturday, January 9, 2016, when the Powerball jackpot was over

$800 million, the pace of tickets being sold was $7,700 per second. What was the pace

at which tickets were being sold per hour? Show your work.

4. Find the total number of combinations for winning the January 2016 jackpot (correctly

choosing all five white balls and one red ball). Show your work.