zarkam21
  • zarkam21
You have a 3-card deck containing a king, a queen, and a jack. You pick a card, put it back, and pick another. What is the probability that you do not pick the same card twice?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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welshfella
  • welshfella
|dw:1441025727089:dw|
welshfella
  • welshfella
use this tree diagram there are 9 possible paths you need to count the paths containing no duplicats
zarkam21
  • zarkam21
1/3?

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More answers

welshfella
  • welshfella
no Thats the probabilty of picking the same card twice
welshfella
  • welshfella
you need JQ , JK etc
zarkam21
  • zarkam21
okay for example JQ would be 2/3?
zarkam21
  • zarkam21
I'm little confused
welshfella
  • welshfella
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welshfella
  • welshfella
- you need the paths in blue
zarkam21
  • zarkam21
In Blue?
welshfella
  • welshfella
well different color
zarkam21
  • zarkam21
so jqk, qjk, and kjq
welshfella
  • welshfella
JQ JK etc
welshfella
  • welshfella
yes
welshfella
  • welshfella
you said the correct answer already
zarkam21
  • zarkam21
2/3?
welshfella
  • welshfella
there are 6 of these out of a possible 9
welshfella
  • welshfella
right do you follow it now?
zarkam21
  • zarkam21
6/9 which reduces to 2/3 :]
welshfella
  • welshfella
yea
zarkam21
  • zarkam21
Is that the answer to the problem, 2/3?
welshfella
  • welshfella
yes
zarkam21
  • zarkam21
Thank you =]
welshfella
  • welshfella
do you understand the tree diagram?
welshfella
  • welshfella
yw
zarkam21
  • zarkam21
Yes, you took the main cards and listed the possible outcomes for each one
welshfella
  • welshfella
thats right each path in the diagram illustrate one of the 9 possible outcomes
zarkam21
  • zarkam21
Yes :D Thanks Again!
welshfella
  • welshfella
|dw:1441026383234:dw|

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