Question

a standard deck of card contains 52 cards. one card is selected from the deck.
a. p(heart or spade)
b.p(heart or spade or diamond)
c. p(queen or spade)

Answer 1

i think a. is 1/4
b.3/4

Answer 2

but my best guess for c is 17/52 im not sure if that right

Answer 3

a. The probability of heart or spade is:
P(heart) + P(spade)
There are 13 cards in each suit, so:
P(heart) + P(spade) = 13/52 + 13/52 = you can calculate

Answer 4

so 1/2

Answer 5

b. The probability of heart or spade or diamond is:
P(heart) + P(spade) + P(diamond) = 13/52 + 13/52 + 13/52 = 3/4

Answer 6

yay i got that right

Answer 7

Yes, 1/2 is correct for a.

Answer 8

for c i keep coming up with 17/52

Answer 9

=.33

Answer 10

is c right

Answer 11

a.) 1/2
b.) 3/4
c.)17/52 or .33

Answer 12

thank you

Answer 13

There are 12 cards in the suit of spades without the queen of spades. And there are 4 queens;
So:
P(queen or spade) = 4/52 + 12/52 = 4/13

Answer 14

c.)
p(queen)+p(spade)=4/52+13/52=17/52 or.33

Answer 15

oh thank you again
i forgot you can count something twice

Answer 16

You're welcome :)