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A study reports that 56% of Americans support increased funding for public schools.
If 5 Americans are chosen at random, what is the probability that:
a) All 5 of them support increased funding for public schools?
b) None of the 5 support increased funding for public schools?
c) At least one of the 5 support increased funding for public schools?
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(a) ANSWER : P = = 0.0551 (rounded).
(b) ANSWER : P = = = 0.0165 (rounded).
(c) ANSWER : P = 1 - = 1 - = 1 - 0.0165 = 0.9835 (rounded).
Solved.
As the formulas are written, they explain everything.