| Probability Questions | Probability Formula |
|---|---|
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2 / 8 = .25
What is probability of getting a 5 or 6 on a 8-sided dice?
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1 − P(a)
What is the formula for a^C
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1 - (.49 + .22 + .15 ) = .14
What is probability of a type of blood other than O, A, and B?
Blood type: O A B Others Probability: .49 .22 .15 ????? |
number of outcomes in event A / total number of outcomes in sample space
What is the formula for the probability of A
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1 / 8 = .125
1 - P(a) = 1 - .125 = .875
What is the probability of getting three heads after three flips of a fair two-sided coin? What is the probability of no getting all three heads after three flips of a fair two-sided coin?
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P(a) + P(B) − P(a ∩ B)
What is the formula for P(a ∪ B)
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P(Died l Third class) = 476 / 765 = .6222
P(Died) = 765 / 1207 = .6338 They are not independent since the two P is not the same
What is P(Died Third class)? What is P(Died)? Is the events "died" and "third class" independent?
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P(a) * P(B l A)
What is the formula for P(a ∩ B)
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P(no damage l no cover) = 151/ 662 = .2281
P(no damage l less than 1/3) = 158 / 662 = .2387 P(no damage l 1/3 to 2/3) = 177 / 662 = .2674 P(no damage l more than 2/3) = 176 / 662 = .2659
What is the conditional probabilities that a randomly selected seedling was not damaged, given each level of cover?
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P(a ∪ B) / P(a)
What is the formula for probability of A given B
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