Hello, puzzledwithpolynomials!

There are: . possible outcomes.In a Bingo game, balls numbered 1-75 are placed in a bin.

Balls are randomly drawn and not replaced.

There are 66 two-digit numbers (from 10 to 75).Find each probability for the first 5 balls drawn.

11. P(5 two-digit numbers)

There are: . ways to get 5 two-digit numbers.

Therefore: .

There are: .13. P(5 even numbers or 5 numbers less than 30)

Hence, there are: . numbers which are evenorless than 30.

And there are: . ways to get a number which is even or less than 30.

Therefore: .