Question #273640

A shipment has a 100 tape recorders of which 10 of these units are defective. What is the


probability that among 5 tape recorders chosen for inspection one will be defective?

Expert's answer

P(X=1)=C101∗C904C1005=0.3394.P(X=1)=\frac{C_{10}^1*C_{90}^4}{C_{100}^5}=0.3394.


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