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levigabehart
26.11.2019 •
Mathematics
If two events are complementary, then the sum of their probabilities is
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Ответ:
Ex. P(rain) =.70; P(not rain) = .30
.70 + .30 = 1
Ответ:
Let roll a dye, the probability of getting, sat number 4==> P(getting 4) = 1/6
Ant the probability of getting(either,1 or 2 or 3 or 5 or 6) ==> P(1,2,3,5,6) =5/6
5/6 is the complement of 1/6==> P(4) + P(1,2,3,5,6)= 1/6 +5/6 =1
Ответ:
y=1
Step-by-step explanation:
The correct table that shows the direct variation is:
5 6 y 9
15 18 3 27
Since this is a direct variation, there is a proportional relation.
Therefore:![\frac{27-15}{9-5}=\frac{3-15}{y-5}](/tpl/images/0461/9607/83ec9.png)
This implies that:
Therefore the value of y is 1