SOLUTION: a small company finds the probability of a single phone being engaged is 0.8 the company wants to improve thier service to customers by providing sufficient phones so that the pro

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Question 463840: a small company finds the probability of a single phone being engaged is 0.8
the company wants to improve thier service to customers by providing sufficient phones so that the probability of a phone being engaged is less than 0.5.
how many phones do they need ?
HELPPPPP !!!!!!!!1
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

8 out of 10 are being engaged.
8*2 = 16
10-6 = 6 i.e 60% of 10.
60% more phones are needed.