In a manufacturing process it is estimated that 1% of the products are defective. a) If a client places an order for 20 of the products, what is the probability that at least one of them is defective? b) What is the expected number of defective items?
Added by Richard R.
Close
Step 1
The complement of "at least one defective" is "none defective". The probability of none defective is (0.99)^20 = 0.817. Show more…
Show all steps
Your feedback will help us improve your experience
Federico Castro and 82 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Adi S.
In a manufacturing process, it is estimated that 1% of the products are defective. If a client places an order for 25 products, what is the probability that no more than one of them is defective?
In a production line, it's known that 5% of the produced items are defective. If 20 items are randomly selected: a. What's the probability that exactly 2 items are defective? b. What's the probability that at least 3 items are defective? c. Compute the expected number of defective items in the sample.
Lucas F.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD