The Sorry State Lottery requires you to select five different numbers from 0 through 40. (Order is not important.) You are a Big Winner if the five numbers you select agree with those in the drawing, and you are a Small-Fry Winner if four of your five numbers agree with those in the drawing. (Enter your answers as exact answers.)

What is the probability of being a Big Winner?

What is the probability of being a Small-Fry Winner?

What is the probability that you are either a Big Winner or a Small-Fry Winner?

Question

The Sorry State Lottery requires you to select five different numbers from 0 through 40. (Order is not important.) You are a Big Winner if the five numbers you select agree with those in the drawing, and you are a Small-Fry Winner if four of your five numbers agree with those in the drawing. (Enter your answers as exact answers.)

What is the probability of being a Big Winner?
  

What is the probability of being a Small-Fry Winner?
  

What is the probability that you are either a Big Winner or a Small-Fry Winner?

anonymous · Answer

Big Winner Probability:
1 / C(40,5)

Do you know how to calculate C(40,5)? That's combinations of 40 things taken 5 at a time.

anonymous · Answer

yes i do but i need help on the other ones to, if you know how to do them