Raymond B. answered 02/12/22
Math, microeconomics or criminal justice
probability of a suit is 1/4. or 13/52. there are 4 suits, spaces, hearts, diamonds and clubs. 13 cards in each suit.
probability of a face card is 12/52 = 3/13. there are 3 face cards in each suit of 13 cards or 12 face cards in the deck of 52 cards.
1/4 x 3/13 = 3/(4)(13) = 3/52
or
13/52 x 12/52 = 156/2704 = 3/52
Hard to tell what the "solution" you have is about.
10 is from 10 non-face cards. 3 is from 3 face cards
12 comes from the suit cards left if the non face card was the same suit
51 is the remaining cards after one card is drawn
11? other than 11 makes it work out to the correct answer 3/52
11 seems to be how many cards left in the suit of 13 after removing 2 cards
a complicated way to get the answer. 1/4 x 3/13 is much easier.
they seem to be calculating getting a nonface card times getting the same suit as that nonface card
then adding what you'd get with a face card times getting the same suit
Cassie A.
Thank you so much for your help, I had been struggling with this problem for hours earlier this morning. You made it so much clearer for me! Thanks02/12/22