Statistics
posted by Jason L .
A company claims that no more than 5% of a particular product has a defect. In a shipment of 15 units what is the probability of receiving 3 or 4 defective units?
You can probably use a binomial probability function for this problem.
P(x) = (nCx)(p^x)[q^(nx)]
n = 15
x = 3, 4
p = .05
q = 1  p = .95
Find P(3), P(4).
P(3) = (15C3)(.05^3)(.95^12)
P(4) = (15C4)(.05^4)(.95^11)
Finish the calculations; then add together for your probability.
Respond to this Question
Similar Questions

Math  Statistics
A company claims that no more than 5% of a particular product has a defect. In a shipment of 15 units, what is the probability of receiving 3 or 4 defective units? 
Math  Statistics
A company claims that no more than 5% of a particular product has a defect. In a shipment of 15 units, what is the probability of receiving 3 or 4 defective units? 
precalculus
a shipment of 10 microwaves contains 3 defective units. in how many ways can a vending company choose 4 units if: a)all units are good b)2 units are good c) at least 2 units are good 
math
How do you do this question? A shipment of 25 television sets contains three defective units. In how many ways can a vending company purchase four of these units and receive (a) all good units, (b) two good units, and (c) at least 
statistic
a shipment of 40 television sets contains 3 defective units. How many ways can a vending company can buy five of these units and receive no defective units 
Binomial Math
The manager of Toy World has decided to accept a shipment of electronic games if there is no more than 1 defective electronic game in a random sample of size 17. What is the probability that he will accept the shipment if 15% of the … 
Statistics
A stationary store has decided to accept a large shipment of ballpoint pens if an inspection of 20 randomly selected pens yields no more than two defective pens. a) find the probability that this shipment is accepted if 5% of the … 
math 221n
A shipment of 40 television sets contains 3 defective units. How many ways can a vending company can buy five of these units and receive no defective units? 
Stats
Use the normal distribution to approximate the following Binomial probability. A product is manufactured in batches of 100 and a defect rate of 8%. Find the probability of more then 7 defects. 
statistics
Unknown to a qualitycontrol inspector, 20% of a very large shipment of electric switches are defective. The inspector has been told to reject the shipment if, in a sample of 15 switches, 2 or more are defective. The probability that …