SOLUTION: Hi! Please help me out with this problem. It is known that 38% of all summonses issued by a particular police precinct are for parking violations. If this department in January

Algebra ->  Probability-and-statistics -> SOLUTION: Hi! Please help me out with this problem. It is known that 38% of all summonses issued by a particular police precinct are for parking violations. If this department in January      Log On


   

Question 1179030: Hi! Please help me out with this problem.
It is known that 38% of all summonses issued by a particular police precinct are for parking violations. If this department in January will issue 300 tickets, what is the probability that at least 100 of them will be for parking violations?
Thank you so much!
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Binomial Distribution:  p = .38  n = 300
Using TI or similarly an inexpensive calculator like an Casio fx-115 ES plus
P(x > 100) = 1 - P(x ≤ 99) = binomcdf(300,.38,99) = 1 -.0413 = .9587

Wish You the Best in your Studies.