Question

Expectation Of Card: if cameron selects a picture card from a standard deck of 52 cards, lindsey will give him $9. if not he gives lindsey $3.
Determine Cameron's expectations.
Determine Lindsey's expectations.
If cameron plays the game 100 times, how much can he expect to lose or gain?

Answer 1

what's picture card? is it one of king, queen, ace, jockey?

Answer 2

Do u mean jocker? @SandeepReddy ?

Answer 3

joker cards doesn't constitute the deck, I'm not clear about what are picture cards

Answer 4

joker is not in a 52 card deck

Answer 5

picture cards are face cards
there are 4x3 = 12 face cards

Answer 6

hmm, then camerons expectation is 12/52

Answer 7

king , queen, jack , and there are 4 suits

Answer 8

I'm confused whether Ace comes in picture cards or not @perl , you a playa? :P :D

Answer 9

ace has no picture :)

Answer 10

there is no face on the ace, basically

Answer 11

camerons 12/52 => 3/13
lindsey (52-12)/52 = 40/52 = 10/13

Answer 12

can you take a screen shot of the question @Jackeline1928

Answer 13

"If cameron plays the game 100 times, how much can he expect to lose or gain?"

Assuming the cards are placed in deck everytime after they play :P,
now expectation that he wins every time so -> 100*3/13*9 dollars

Answer 14

that's the max he can earn
if he fail everytime they play then
expectation that he loses -> 100*10/13*3 dollars
that's the max he can lose.

Answer 15

Extra Info:
Unless he's super lucky, he'll have a great chance of going bankrupt

Answer 16

X = 9 , P(x) = 12/52
X= -3 , P(x) = 40/52

expected Value = Sum X * P(X)

Answer 17

Expectation Of Card: if cameron selects a picture card from a standard deck of 52 cards, lindsey will give him $9. if not he gives lindsey $3.
Determine Cameron's expectations.
9* 12/52 + (-3)*40/52

Answer 18

U guys r doing great

Answer 19

did i spell anywhere wrong? @perl i said
"if he fail everytime they play then
expectation that he loses -> 100*10/13*3 dollars
that's the max he can lose."

Answer 20

Camerons expectation
9* 12/52 + (-3)*40/52 = -$0.23

Lindsays Expectation
-9 * 12/52 + 3* 40/52 = $0.23

Answer 21

If cameron plays the game 100 times, how much can he expect to lose or gain?

multiply 100 * cameron expectation = 100 * (-0.23) = -23
so cameron will expect to lose 23 dollars if he plays 100 games

Answer 22

and this makes sense, Lindsey is like a casino , she has an advantage over cameron

Answer 23

@perl you r right man! , I totally took it differently thanks :)