Help with # 4 plz idk
1 answer:
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Marbles in a bag: 3 green, 4 yellow, 5 blue, 8 pink.
Event A - get a green or yellow marble
Event B - get a pink marble
Events A and B are independent because we draw a marble from a bag with 20 marbles in both cases.
Probability of combined events is
Event A - get a green or yellow marble
Event B - get a pink marble
Events A and B are independent because we draw a marble from a bag with 20 marbles in both cases.
Probability of combined events is
We know:
and
These expressions have an term in common. We can combine them if we can find forms of the expressions in terms of
:
Now, because (by the reflexive property), we can write:
This is our answer, A.