SOLUTION: in a recent survey 73% of the community favored building a police substation in their neighborhood. If 14 citizens are chosen, a. find the probability that exactly 5 of them favor

Algebra ->  Probability-and-statistics -> SOLUTION: in a recent survey 73% of the community favored building a police substation in their neighborhood. If 14 citizens are chosen, a. find the probability that exactly 5 of them favor       Log On


   

Question 1023894: in a recent survey 73% of the community favored building a police substation in their neighborhood. If 14 citizens are chosen, a. find the probability that exactly 5 of them favor the building of the police substation
b. that less than 3 of them favor the building of the police substation
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi  

P(in favor) = .73,  n = 14

TI syntax for P(x-value) is binompdf(n, p, x-value).

P( x = 5) = binompdf(14, .73, 5) = .00069 P = .07%

P( x ≤ 2) ***less than 3 

TI syntax is binomcdf(n, p, largest x-value) 

P( x ≤ 2)= binomcdf(14, .73, 2) = .0000007  0r ~ 0%