SOLUTION: According to a Gallop poll, 27% of American adults have confidence in banks. Suppose that you
interview 5 American adults at random.
(a) What is the probability that 2 or fewer h
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interview 5 American adults at random.
(a) What is the probability that 2 or fewer h
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Question 1136550: According to a Gallop poll, 27% of American adults have confidence in banks. Suppose that you
interview 5 American adults at random.
(a) What is the probability that 2 or fewer have confidence in banks?
(b) What is the probability that no one had confidence in banks?
(c) What is the probability that 3 or more have confidence in banks? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! for 0:
this is 0.73^5=0.2073. ANSWER b
for 1: it is 5*0.27*0.73^4=0.3834
for 2: it is 10*0.27^2*0.73^3=0.2836
for 2 and fewer, it is 0.8743 ANSWER a
for 3 or more, it is the complement or 0.1257 ANSWER c
