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Doss [256]
3 years ago
8

1. Two dice are thrown at the same time . What is the probability that the sum will be 7 or 11 ?

Mathematics
2 answers:
netineya [11]3 years ago
8 0

Answer:

1. 0.2222222

2. .6667

Step-by-step explanation:

for question 1

there can only be 36 outcomes so you find out how many time you could get 7and2 which is 8 from so u write 8.36=.2222

for question 2

divide the outcome by the total out comes example(there are 6 red balls and 4 white out of 15 so you do 10/15=.6667)

defon3 years ago
3 0

Answer:

<h3>#1</h3>

<u>Outcomes with sum of 7:</u>

  • 1 + 6, 2 + 5, 3 + 4, 4 +3. 5 + 2, 6 + 1

<u>Outcomes with sum of 11:</u>

  • 5 + 6, 6 + 5

<u>Total outcomes:</u>

  • 6*6 = 36

<u>Required probability:</u>

  • P(sum of 7 or 11) = (6 + 2)/36 = 8/36 = 2/9 or 22.22%
<h3>#2</h3>
  • P(red or white) = (6 + 4)/(6 + 4 + 5) = 10/15 = 2/3 or 66.67%
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