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प्रश्न
Refer to Question 6. Calculate the probability that the defective tube was produced on machine E1.
उत्तर
Now, we have to find `"P"("A"_1/"D")`
`"P"("A"_1/"D") = ("P"("A"_1 ∩ "D"))/("P"("D"))`
= `("P"("A"_1)"P"("D"/"A"_1))/("P"("D"))`
= `(1/2 xx 1/25)/(17/400)`
= `8/17`.
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