label your results, such as
prob(red) = 20/45 = 4/9
prob(yellow) = 5/9
(don't just write down some arithmetic calculations,
e.g. what is 25*20 = 500 supposed to represent )
here is all you need
Prob(2 reds) = (20/45)(19/44) = 19/99
explanation:
prob(first red) = 20/45
there are now 19 reds left of the remaining 44 candies
so prob(another red) = 19/44
There are 45 candies in a bowl, 20 red and 25 yellow. If two are taken from the bowl, what is the probability they will be two red candies?
here is what I have but I need help with the rest or even knowing if I am right.
20/45
25/43
25 * 20 = 500
45 * 43 = 1935
0.25839 is decimal
1 answer