Question

There are two 7s (of hearts and spades) and two 8s (of hearts and spades) in a deck of cards. The deck has no other cards. Emma draws two cards from this deck.

(1) What is the probability of Emma having both 7s if she says she has a 7？

(2) What is the probability of Emma having both 7s if she says she has a 7 of hearts?

Please explain the answer in detail and in good hand writing! Thanks a lot!

Answer 1

solution hearts and too Is (of wie Given there hearts and two 85 (of spades) and Spades) in a cords The deck other cards. deck has no of cards two 75+ two SS Total number from this deck draws cards two Emma of Emma both 75 having @ probability --- P(Host is 7) *P/second is 7 ) P(both 75) P (frost is 7). number 75 total number of cards in deck 2 5 4 Selected, so only One 7 is already remain total 3 and are is one 7 there : number of remaining 75 remaining cards on deck P(first is 7). total 3 P(both 75) - X 1 11 음 4 wh- 6

6 If a of hearts" then she says "I have there is only one of heart 16 total 4 7 card which cards is number 87 hearts P 17 of hearts ) total cards 3/44 4 Please like & support. Thank you.