Question

5. A bag contains 3 red sweets and 7 blue sweets. John randomly picks two sweets from the bag.
a) If he replaces the first sweet back into the bag before getting the second sweet, what is the chance of him getting 2 blue sweets?
b) If he does not replace the first sweet back into the bag before getting the second sweet, what is the chance of him getting 2 blue sweets?

Answer 1

2/10 and 2/9?

Answer 2

2/9

Answer 3

answers please~

Answer 4

what