ZuoTi.Pro
Question

The percentage of coronavirus (COVID-19) infected people in a certain city is 15%. Suppose that we...

The percentage of coronavirus (COVID-19) infected people in a certain city is 15%. Suppose that we randomly select a sample of 6 people from this city. a) Find the probability that there will be one infected person in the sample. b) Find the expected number of infected people in the sample (E(X) = ?). c) Find the variance of the number of infected people in the sample (? 2 )

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
The percentage of coronavirus (COVID-19) infected people in a certain city is 15%. Suppose that we...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Question 3: (1 mark for each part) The percentage of coronavirus (COVID-19) infected people in a...

    Question 3: (1 mark for each part) The percentage of coronavirus (COVID-19) infected people in a certain city is 15%. Suppose that we randomly select a sample of 6 people from this city. a) Find the probability that there will be one infected person in the sample. b) Find the expected number of infected people in the sample (E(X) = ?). c) Find the variance of the number of infected people in the sample (? 2 )

  • 2. Suppose the number of people infected with COVID-19 worldwide in thousands can be modeled by...

    2. Suppose the number of people infected with COVID-19 worldwide in thousands can be modeled by P = 10.58e1.017, where t is the time in months, with t = 0 corresponding to the beginning of February. (a) Let t = 1.5 to model predict the amount of people infected as of this week. (b) Predict the infected population in April, May, and June using the model and t = 2,3, and 4. Why is the growth from April to May...

  • 6. Coronavirus, more specifically called COVID-19, is obviously caused by a virus. Are viruses prokaryotes, eukaryotes,...

    6. Coronavirus, more specifically called COVID-19, is obviously caused by a virus. Are viruses prokaryotes, eukaryotes, or are they not considered cells at all? Explain your answer. [Type your answer here in bold.) COVID-19 is an airbome infectious agent. Describe two measures that could be used to effectively prevent an infected person from transmitting the disease to others. [Type your answer here in bold.]

  • 1. Suppose that 81% of the people in Houston live in the city and 19% of...

    1. Suppose that 81% of the people in Houston live in the city and 19% of the people live in the suburbs. If the 21,000 undergraduate students from UH represent a random sample of the population, what is the probability that the number of UH undergraduates are from suburbs will be fewer than 4,000? (Hint: Apply normal approximation to binomial probability via CLT.) 2. Suppose that the body mass index (BMI) measure for adults is normally distributed with mean 21.7...

  • The probability of a randomly selected adult in one country being infected with a certain virus...

    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 19 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.

  • 1.The number of people sick from imported meat products in a certain city was found to...

    1.The number of people sick from imported meat products in a certain city was found to be normally distributed with mean and standard deviation: X≈N(U=190, σ =22). What is the probability that the number sick next month in that city would be between 175 and 194? Select one: a. 0.3231 b. 0.1803 c. 0.1769 d. 0.6769 2.The number of people getting sick from imported meat products in a certain city in one month was found to be normally distributed with...

  • Do a report on influenza and Coronavirus (COVID-19) be sure to include information about the following:...

    Do a report on influenza and Coronavirus (COVID-19) be sure to include information about the following: 1) Compare the COVID-19 pandemic we are currently facing to other types of coronavirus. 2) Compare this coronavirus to influenza viruses. What do we know? What is unknown? 3) Describe the different influenza viruses (reference clinical focus "Influenza: Crossing the Species Barrier" pg 367). 4) Is there a difference in the transmission rate of influenza and COVID-19? Death rate? 5) Where did the COVID-19...

  • Question 1. 50 points Here we want to model the spread of the COVID-19 epidemic! Assume...

    Question 1. 50 points Here we want to model the spread of the COVID-19 epidemic! Assume that ENCE112 Country get it first infection from a gentleman who flew in from China-Town, Wuham. Assume also that each without isolation, any covid-19 patient infects one other person. If we assume that each covid-19 infected person is isolated after just one day. a. Derive a recursive formula for the number of infected persons in n-days. 10 points b. Develop a recursive algorithm for...

  • The probability of a randomly selected adult in one country being infected with a certain virus...

    The probability of a randomly selected adult in one country being infected with a certain virus was 0.004. In tests for the virus, blood samples from 27 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?

  • The probability of a randomly selected adult in one country being infected with a certain virus...

    The probability of a randomly selected adult in one country being infected with a certain virus was 0.004. In tests for the virus, blood samples from 27 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?

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT