anonymous
  • anonymous
If two standard number cubes are rolled 100 times, predict the number of times that a sum of 7 or 11 will be rolled
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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UnkleRhaukus
  • UnkleRhaukus
with two standard diec the chances of a seven is 6 in 36 or 1/6 in 100 roles you can expect 100/6 = 16.66... ~ 17 sevens the chances of an eleven is 2 in 36 or 1/18 in 100 roles you can expect 100/18 = 5.55... ~ 6 elevens
Directrix
  • Directrix
UnkleRhaukus
  • UnkleRhaukus
i pulled 6 and 2 from a similar table

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Directrix
  • Directrix
Looking at the uploaded image of possible outcomes of tossing a pair of dice once, notice that the sums of 7 are aligned on a right to left diagonal. There are 6 ways to get a sum of 7. The sums of 11 are on a mini-diagonal, right to left. There are two ways to get 11. That gives a total of 8 ways per toss to get a sum of 11 or a sum of 7. The associated probabilty is 8/36 for one roll. For 100 rolls, 100* (8/36) = 22.22 approx. Based on that, I would expect 22 sums of 7 or 11 in 100 rolls of a pair of dice.

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