EXAMPLE 3.2 There are four batteries, and one is defective. Two are to be selected at random for use on a particular day. Find the probability that the second battery selected is not defective, given that the first was not defective.
Added by Jonathan M.
Close
Step 1
So, there are 3 non-defective batteries. Show more…
Show all steps
Your feedback will help us improve your experience
Pritesh Ranjan and 92 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
On a particular production line, the likelihood that a battery is defective is 2%. If 12 batteries are randomly selected, what is the probability that two batteries will be defective?
Pritesh R.
A batch contains 100 batteries, of which 4 are defective. Two batteries are selected at random without replacement. What is the probability that at least one of the batteries selected is defective? (Give your answer to 3 decimal places)
Sri K.
Flashlight Batteries A flashlight has 6 batteries, 2 of which are defective. If 2 are selected at random without replacement, find the probability that both are defective.
Probability and Counting Rules
The Multiplication Rules and Conditional Probability
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD