what is the probability that a red or green marble will be selected from a bag containing 9 red marbles, 7 green marbles, and 11
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Answer:
Step-by-step explanation:
We are given that a fair 6 sided die is rolled.
Let X denotes the event that an odd number
X=1, if an odd number
X=0, if an even number
Let Y indicates the event that 2,3 or 4 is rolled .
Y=0,if 1,5 or 6 rolled
Y=1 , if 2,3 or 4 rolled
We have to find P(X=0,Y=1)
It means we have to find P(2 or 4).
When X=0 and Y=1 It means we get an even number.
P(2 or 4)=P(2)+P(4)=
Hence, P(X=0,Y=1)=