the probability of a random selected adult in one country being infected with a certain virus is 0.2. in tests for the virus , blood samples from 3 people are combined. what is the probabilty that the combined sample tests positive for the virus?
Added by Troy A.
Step 1
The probability of a randomly selected adult being infected with the virus is given as 0.2. This means that 20% of the adults are infected. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Hubert Agamasu and 96 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
The probability of a randomly selected adult in one country being infected with a certain virus is 0.003 . In tests for the virus, blood samples from 22 people are combined. What is the probability that the combined sample tests positive for the virus? Is it unlikely for such a combined sample to test positive? Note that the combined sample tests positive if at least one person has the virus.
Hubert A.
The probability of a randomly selected adult in one country being infected with a certain virus is 0.006. In tests for the virus, blood samples from 21 people are combined. What is the probability that the combined sample tests positive for the virus? Is it unlikely for such a combined sample to test positive? Note that the combined sample tests positive if at least one person has the virus. The probability that the combined sample will test positive is __ (round to three decimal places as needed)
Joanna Q.
The probability of a randomly selected adult in one country being infected with a certain virus is 0.004. In tests for the virus, blood samples from 30 people are combined. What is the probability that the combined sample tests positive for the virus? Is it unlikely for such a combined sample to test positive? Note that the combined sample tests positive if at least one person has the virus. The probability that the combined sample will test positive is _____ (Round to three decimal places as needed.)
Qudsiya A.
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