Register
in a batch of 280 water purifiers, 12 were found to be defective. what is the probability that a water purifier chosen at random will be defective? write the probability as a percent
219k views
4 votes
in a batch of 280 water purifiers, 12 were found to be defective. what is the probability that a water purifier chosen at random will be defective? write the probability as a percent

User Virag Brahme
by
9.0k points

1 Answer

2 votes
Batch size = 280 purifiers
Defectives = 12 purifiers

Then,
P(defective) = defectives/batch size = 12/280 =3/70

As a percentage:
P(defective) = (3/70)*100 = 4.29%
User Radha Gogia
by
7.9k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!