Multiple events probability

crispyboymm

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Joined
May 4, 2022
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I've tried everything, but I haven't been able to solve this.
I try to get a consistent result on an equation that goes as follows:
Probability of A is 25%
Probability of B is 75%
Events are opposite to each other
Number of events is y
What is the probability that x out of y events result in A
I've tried to do it in google docs without fruition
I used Repeated trials formula from this document
 
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