Question

5. A scientist wants to estimate the number of carps remaining in a lake after an...

5. A scientist wants to estimate the number of carps remaining in a lake after an ecological disaster. She catches 50 carps and tags them. Later on, she fishes again 50 carps and discovers that 10 of them are tagged.
(a) What is the probability of this event if the lake contains n carps?

(b) How can such data be used to estimate the number of carps remaining in the lake?

Math   Advanced-Math   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
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
Similar Questions
A worker for the Department of Fish and Game is assigned the job of estimating the...
A worker for the Department of Fish and Game is assigned the job of estimating the number of trout in a certain lake of modest size. She proceeds as follows: She catches 100 trout, tags each of them, and puts them back in the lake. One month later, she catches 100 more trout, and notes that 10 of them have tags. (a) Without doing any fancy calculations, give a rough estimate of the number of trout in the lake. (b)...
High in the Rocky Mountains, a biology research team has drained a lake to get rid...
High in the Rocky Mountains, a biology research team has drained a lake to get rid of all fish. After the lake was refilled, they stocked it with an endangered species of Greenback trout. Of the 2000 Greenback trout put into the lake 300 were tagged for later study. An electroshock method is used on individual fish to get a study sample. However, this method is hard on the fish. The research team wants to know the smallest number of...
question 1. A marketing specialist wants to estimate the average amount spent by visitors to an...
question 1. A marketing specialist wants to estimate the average amount spent by visitors to an online retailer's newly-designed website. From the data in a preliminary study she guesses that the standard deviation of the amount spent is about 16 dollars. How large a sample should she take to estimate the mean amount spent to within 4 dollars with 95% confidence? (Round your answer up to the next largest integer). ______ question 2. Pepsi wants to use this technique to...
I am wondering where the number 20 fits in the analysis: " Based on past experience,...
I am wondering where the number 20 fits in the analysis: " Based on past experience, she can expect to sell an average 20 of these new bedroom suites a day at the state fair." Sharron makes hand-made bedroom furniture, and will have a booth at the state fair. She will be selling furniture based on models shown at the fair. She is very excited about one new style of a bedroom suite (dresser-mirror, bed-frame, chest, 2 night stands) because...
What distribution best models each situation? (No actual work, just which distribution best models the problem)...
What distribution best models each situation? (No actual work, just which distribution best models the problem) A. According to the Daily Racing Form, the probability is about 0.67 that the favorite in a horse race will finish in the money (first, second or third place). Suppose that you always bet the favorite “across the board”, which means that you win something if the favorite finishes in the money. What probability distribution describes the number of races that you bet until...
The following paragraphs describe a series of hypothetical experiments, each of which involves one or more...
The following paragraphs describe a series of hypothetical experiments, each of which involves one or more design flaws. Please read the paragraphs and match them to what went wrong. options are: demand characteristics, missing a control group, extraneous variable(s) present, placebo effect A group of psychologists wants to determine whether scream therapy actually helps people feel better. To test this, they recruit a number of subjects who have recently complained of extreme nervousness, and they carefully measure their anxiety using...
Question: The probability that a standard normal variable, Z, is below 1.96 is 0.4750. (T/F) Question-After...
Question: The probability that a standard normal variable, Z, is below 1.96 is 0.4750. (T/F) Question-After an extensive advertising campaign, the manager of a company wants to estimate the proportion of potential customers that recognize a new product. She samples 120 potential consumers and finds that 54 recognize this product. She uses this sample information to obtain a 95 percent confidence interval that goes from 0.36 to 0.54. True or False: 95 percent of the people will recognize the product...
PART A) The owner of a golf course wants to determine if his golf course is...
PART A) The owner of a golf course wants to determine if his golf course is more difficult than the one his friend owns. He has 25 golfers play a round of 18 holes on his golf course and records their scores. Later that week, he has the same 25 golfers play a round of golf on his friend's course and records their scores again. The average difference in the scores (treated as the scores on his course - the...
Managing Ashland MultiComm ServicesThe Ashland MultiComm Services (AMS) marketing department wants to increase subscriptions for its...
Managing Ashland MultiComm ServicesThe Ashland MultiComm Services (AMS) marketing department wants to increase subscriptions for its 3-For-All telephone, cable, and Internet combined service. AMS marketing has been conducting an aggressive direct-marketing campaign that includes postal and electronic mailings and telephone solicitations. Feedback from these efforts indicates that including premium channels in this combined service is a very important factor for both current and prospective subscribers. After several brainstorming sessions, the marketing department has decided to add premium cable channels as...
#46 In a survey of 2000 adults 50 years and older of whom 20% were retired...
#46 In a survey of 2000 adults 50 years and older of whom 20% were retired and 80% were pre-retired, the following question was asked: Do you expect your income needs to vary from year to year in retirement? Of those who were retired, 23% answered no, and 77% answered yes. Of those who were pre-retired, 28% answered no, and 72% answered yes. If a respondent in the survey was selected at random and had answered yes to the question,...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT