Question

A bag has 20 balls numbered from 1 to 20. If you guess the number of the ball you draw from the bag you win a prize. What is the probability that you will not win a prize?

19/20?

If Keri draws a card from a stack the probability that it will be a 10 is 4/13 what is the probability that the card will not be a 10
9/13?

Answer 1

Yes I think for the first one it is 19 out of 20 and you are correct for the second one cuz if the other cards have different numbers on them then there's a probability that you will pick dat instead of ten