SOLUTION: If 22% out of 100 eligable voters vote, what is the probability that fewer than 20 voted. Same question but the probability that at least 25 voted. exactly 23 voted and exactly 19

Question 871582: If 22% out of 100 eligable voters vote, what is the probability that fewer than 20 voted. Same question but the probability that at least 25 voted. exactly 23 voted and exactly 19 voted.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

p = .22,   n =100

P(x < 20) = 1 - P(x ≥ 20) = 1 - (1-binomcdf(100, .22, 19) = 1 -.722   = .2780

P(x≥ 25) =  1-binomcdf(100, .22, 24)= .2684

P(x = 23) = 100C23(.22)^23(.78)^77)  0r binompdf(100, .22,23) =  .0917 

RELATED QUESTIONS

Use a normal approximation to find the probabilty of the indicated number of voters.  In... (answered by ewatrrr)
The most recent Census Bureau data shows that 22% of eligible voters aged 18-24 voted.
A  (answered by Boreal)
A poll found that 3 of 5 voters planned to vote candidate A.  Joe and Mike voted.  What... (answered by stanbon)
Can someone please help?

Use a normal approximation to find the probability of the... (answered by stanbon)
Use a normal approximation to find the probability of the indicated number of voters. In... (answered by Boreal)
Use a normal approximation to find the probability of the indicated number of voters. In... (answered by CPhill)
Use a normal approximation to find the probability of the indicated number of voters. In... (answered by ewatrrr)
In an election 62% of the voters voted for new school tax. what if the probability that a  (answered by checkley79)
in a controversial school vote only 19% of the teachers voted yes, whereas 95% of the... (answered by checkley77)