The probability that a city bus is ready for service when needed is 84%. The probability that a city bus is ready for service an
d has a working radio is 67%. Find the probability that a bus chosen at random has a working radio given that is it ready for service.
can someone help? i know the answer but i need to show work as to how thats the proper answer.
can someone help? i know the answer but i need to show work as to how thats the proper answer.
1 answer:
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Answer:
-10/3 is the answer
Step-by-step explanation:
Given are two complex numbers as
Recall Demoivre theorem as
(cosA+isinA)(cos A+isin B) = cos(A+B)+isin(A+B)
Hence here we have sum of angles as
A+B = 63+117 =180
=
Since sin180=0 and cos 180=-1