# Thread: probability help

1. ## probability help

Let Ai denote the event that a field goal is made by player i, i=1,2,3. Assume that A1,A2,A3 are mutually independent and that P(A1)= 0.5 P(A2)= 0.7 and P(A3)= 0.6.
Suppose that the probability of failure of a component is p= 0.4. Find the probability that the system does not fail if the number of redundant components is:

a.) 3
b.) 8

2. Originally Posted by cb22hawk
Let Ai denote the event that a field goal is made by player i, i=1,2,3. Assume that A1,A2,A3 are mutually independent and that P(A1)= 0.5 P(A2)= 0.7 and P(A3)= 0.6.
Suppose that the probability of failure of a component is p= 0.4. Find the probability that the system does not fail if the number of redundant components is:

a.) 3
b.) 8
is it me, or does this question not make sense? you started talking about field goals being made by players and ended with failure of components. how are these connected?

3. i copied the question right out of the book. thats what i thought and was confused

4. Originally Posted by cb22hawk
i copied the question right out of the book. thats what i thought and was confused
Undoubtedly the printing press was confused too.

The question makes no sense. Clearly there's been a typsetting bungle. Ignore it. Move on to the next question.

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