Can you please help me with those problems i answered you back thanks! :)
Which problem?
Please enter the time of first posting.
oh it looks like you just answered it, thank you.....i have posted this other problem because i'm not sure if my solution is correct, but Ms. Sue never answered me back...can you help me?
One card is selected from a deck of playing cards. Determine the probability of selecting:
a card greater than 9 or a black card.
Solution: the probability would be 31/52 or 0.596??
I am not clear what you mean by greater than 9.
Are the face cards greater than 9?
Where does the Ace fit it
For some card games, the Ace is worth 1, for others it is 11
Let' assume that 10, J, Q, K and Ace are > 9
number of black cards = 26
number of cards greater than 9 = 20
but that includes the 10 black cards greater than 9 already counted in the black cards
so we have
prob = (26+20-10)/52 = 36/52 = 9/13 = .6923
How did you get 31 ?
think of it as Venn diagrams.
You would have 2 intersecting circles, where the intersection is the black 10's J's Q's K's and A's