Help please and thank you
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Standard form means, move the variables to the left-hand-side and leave the constant all by herself on the right-hand-side, usually sorting the variables, so"x" goes first.
now, there's a denominator, we can do away with it, by simply multiplying both sides by the denominator, so let's do so,
now, there's a denominator, we can do away with it, by simply multiplying both sides by the denominator, so let's do so,
We find the probability of intersection using the inclusion/exclusion principle:
By definition of conditional probability,
For
in which case we have
Or, to establish independence another way, in terms of conditional probability, we must have
which is also true.