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rudolph34
12.10.2019 •
Mathematics
Ray bisects aoc and aox = 31°. aoc =
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Ответ:
a)
There are 4 5's on spinner.
P(5) = (total outcomes of 5) / (total outcomes) = 4 / 12 = 1/3.
b)
There are 1 1's, 3 3's, and 4 5's, so there are 1+3+4 = 8 odd outcomes
So P(odd #) = 8 / 12 = 2/3
c)
We already counted odd #. That's 8. There are 2 2's, so there are 10 "2 or odd #" outcomes
So that's P(2 or odd #) = 10 / 12 = 5/6
Hope this helps.