Question

A card is selected from a deck of 52 playing cards. Find the probability of selecting

· a prime number under 10 given the card is a heart. (1 is not prime.)
· a diamond or heart given the card is red.
· a King, given that the card is not a spade.

Show step by step work. Give all solutions exactly in reduced fraction form.

Answer 1

firstly for a part, find the probability of getting heart , that is 13/52, next find probability of getting under 10 a prime number and a heart , it mean ,2 ,3,5,7,9, , so probability of this is 5/52, divide to get answer that is
5/13 is answer to part a

Answer 2

9 is divisible by 3 so that isnt a prime number. are you able to write it with the funky symbols like P(A∩B)/P(B) ?

Answer 3

Lool sorry i was busy solving two probs , simultaneously , ok , 4/52 is probability, answer becomes 4/13

Answer 4

for b part ,you should know that probability of red card is 1/2, and probability of choosing a heart or diamond is also 1/2, because all the red cards in the deck are hearts and diamonds

Answer 5

so probability is 1

Answer 6

thats odd... the second one... common sense would say 50-50 shot...

Answer 7

no man 50/50 =1 :P

Answer 8

i thank you for your help