How is the second true? I've seen in some cases this can be used but not all the time
>>8134755
If B implies A. In other words if B completely contains A.
>>8134775
the opposite of this. B is a subset of A
>>8134775
How would I know when to use one over the other?
>>8134797
First one I always true. Second one is derived from the first one in the specific case where A is in B
>>8134806
How would I know A is in B?
>>8134835
Graduate from highschool
>>8134879
Nice joke, anon.
So how can I tell of A is in B and if it's not so I know which equation to use
>>8134888
Just use the first one it's always correct
>>8134755
You're a year 10 student doing 10a maths in victoria because I teach this class and i know this was in the probability unit.
>>8134915
Its makes questions like this easier.
>Standard deviation is 5
>>8134888
A and B is events that can happen and you measure the probability of them.
if you know A happen always when B happens then you can use the second rule. example: define the events B: roll a 3 with a normal dice, and A: roll a odd number with a normal dice. then you know that if B occurs then A must have also occur.
>>8134928
[eqn] P(X > w | X > 28) = \frac{P(X > max(w,28))}{P(X > 28)} [/eqn]
If w is not larger than 28 then the numerator is equal to the denominator which would make the probability equal to 1. This means you only have to consider the values where w>28.
>>8134777
Idiot. If B is a (proper) subset of A, then P(B) < P(A), so P(A)/P(B) > 1.
Can a probability be more than 1? No.
Are you an idiot? Yes.
