SOLUTION: A factory produced 50 units. Five of the units produced were defective. If 3 units are randomly selected for testing, what is the probability that at least one unit is defective?

Algebra.Com
Question 876719: A factory produced 50 units. Five of the units produced were defective. If 3 units are randomly selected for testing, what is the probability that at least one unit is defective?
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
p(def) = 5/50 = 1/10, n = 3
P(x ≥ 1) = 1 - P(0) - 1 - (9/10)^3

RELATED QUESTIONS

A study of a manufacturing process indicates that 120 of 6,000 units produced are... (answered by stanbon)
if 15% of the units produced by a machine are defective. Determine the probability that... (answered by stanbon)
How do you know what formula to use for probability? For example for the problem: A... (answered by edjones)
A certain item is manufactured by 3 factories. Suppose we have a stockpile of the items... (answered by Boreal)
Two factory plants are making TV panels. Yesterday, Plant A produced 3 times as many... (answered by josmiceli)
Two factory plants are making TV panels. Yesterday, Plant A produced 7000 fewer panels... (answered by ikleyn)
in manufacturing a component for a machine, the initial cost of die is $850 and all other (answered by nerdybill)
a shipment of 10 Tv sets contains 3 defective units. If three units are taken for... (answered by ikleyn)
A machine that manufactures automobile parts produces 15% defective parts of the time. (answered by Edwin McCravy)