Probability of drawing a certain card.?

p(odd numbered card) = 4 3's + 4 5's + 4 7's + 4 9's / 52 =

16 / 52 = 4/13

p(of diamond) = 13/52 = 1/4

p( diamond and odd card) = 4/52 = 1/13

p( odd card or diamond) = 4/13 + 1/4 - 1/13 =

3/13 + 1/4 = 12/52 + 13/52 = 25/52

we must subtract the case where it is a dimaond and odd since we already included that in the count.

you are totally right. good job!

There are 13 diamonds. Some of the diamonds are odd.

That leaves 39 non-diamonds. The odd cards are 3, 5, 7 & 9. There are three of each for a total of 12 odd cards that are not diamonds.

13 diamonds plus 12 odd non-diamonds is 25. 25/52 = 48%.

Yes, 25/52.

13 diamonds + 12 odd-numbered cards (3, 5, 7, or 9) = 25 possibilities, out of a total of 52 possible cards = 25/52

Aces aren't odd? So then Kings, Queens and Jacks arent odd.

so that leaves 3,5,7,9 in 3 suits = 12 cards + 13 diamonds...

yep 25/52 is right

no of diamond card=13

odd card={3,5,7,9}

no of odd =4*3=12

no of card=52

p(drawing a diamond or an odd numbered card)

=(13+12)/52

=25/52#

1)red 26/52 =1/2 half red half red 13 heart, 13 spade, 13 club, 13 diamond 2) 26/52+13/52-1/52=19/26 1 because overlap like red and heart