SOLUTION: It is estimated that 4000 of the 10,000 voting residents of a town are against a new sales tax. If 15 eligible voters are selected at random and asked their opinion, what is the pr

Question 309327: It is estimated that 4000 of the 10,000 voting residents of a town are against a new sales tax. If 15 eligible voters are selected at random and asked their opinion, what is the probability that at most 7 favor the new tax?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
It is estimated that 4000 of the 10,000 voting residents of a town are against a new sales tax.
If 15 eligible voters are selected at random and asked their opinion, what is the probability that at most 7 favor the new tax?
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Binomial Problem with n = 15 and p = 0.4
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P(0<= x <=7) = binomcdf(15,0.4,7) = 0.7869
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Cheers,
Stan H.
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