anonymous
  • anonymous
You toss two fair dice, one red and one blue. How many different ways can they land? What is the probability that the sum of the dots on the face of the die is 7?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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xapproachesinfinity
  • xapproachesinfinity
one die can land in 6 different way so two dice will have 6+6 ways which 12 ways makes sense?
anonymous
  • anonymous
Yeah I'm following! @xapproachesinfinity
xapproachesinfinity
  • xapproachesinfinity
so part one is done

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lochana
  • lochana
so first we need to find all ways of landing of two dices. all situations = 6^2 = 36 now you need situations where sum of dots is 7 it can be 1+6 2+5 3+3 4+2 5+2 6+1 total = 6 probability = 6/36 =1/6
lochana
  • lochana
is it 12? I am confused @xapproachesinfinity
xapproachesinfinity
  • xapproachesinfinity
now we are looking for possible pairs that sum up to 7 we have 1+6 6+1 3+4 4+3 2+5 5+2 that makes 6 ways we can have a sum of 7
xapproachesinfinity
  • xapproachesinfinity
so portability then is 6/12 chances =1/2
anonymous
  • anonymous
oh my!
lochana
  • lochana
|dw:1447130973055:dw|
anonymous
  • anonymous
and i was gong to retire for the evening
xapproachesinfinity
  • xapproachesinfinity
oh pellet should be 36 possible outcomes
xapproachesinfinity
  • xapproachesinfinity
my bad
anonymous
  • anonymous
ok whew gn
lochana
  • lochana
this is how faces of dices can be turned .@xapproachesinfinity am i wrong?
xapproachesinfinity
  • xapproachesinfinity
no i was wrong bad habit of making errors
xapproachesinfinity
  • xapproachesinfinity
we 6 by 6 possibilities giving us 36 different outcomes
anonymous
  • anonymous
Okay! so then the 6/36 would be 1/6 for the probability of the second half?
xapproachesinfinity
  • xapproachesinfinity
yes correct
xapproachesinfinity
  • xapproachesinfinity
sorry for the first error
anonymous
  • anonymous
@xapproachesinfinity You're fine! I appreciate your help. I had no clue how to work with the dice so that helped a lot. Thank you!!!
xapproachesinfinity
  • xapproachesinfinity
you might be saying why it is 36 if you try to pull all different possible pairs you going to get 36 of them
anonymous
  • anonymous
Okay, gotcha!
xapproachesinfinity
  • xapproachesinfinity
here i want to put the table but cutting time and use the internet is better http://i.stack.imgur.com/9CoBC.gif
xapproachesinfinity
  • xapproachesinfinity
this table shows all possible pairings we can have with to dice
xapproachesinfinity
  • xapproachesinfinity
somehow the ones that add up to 7 lie in diagonal lol
xapproachesinfinity
  • xapproachesinfinity
can you see that?
xapproachesinfinity
  • xapproachesinfinity
i guess you couldn't see it lol
anonymous
  • anonymous
I'm so sorry haha I just saw this! But thank you so much. That makes so much sense!! @xapproachesinfinity

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