SOLUTION: A shipment of 10 replacement computer hard drives contains four that are defective. You are going to purchase two. What is the probability that one is defective?
.4020
.3200
Algebra.Com
Question 691077: A shipment of 10 replacement computer hard drives contains four that are defective. You are going to purchase two. What is the probability that one is defective?
.4020
.3200
.3556
.3020
.5333
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A shipment of 10 replacement computer hard drives contains four that are defective. You are going to purchase two. What is the probability that
exactly one is defective?
----
# of ways to succeed: 4C1*6C1 = 24
# of possible outcomes: 10C2 = 45
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P(1 is defective) = 24/45 = 0.5333
Cheers,
Stan H.
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.4020
.3200
.3556
.3020
.5333
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