The variance of the hypergeometric distribution

Assignment Help Basic Statistics
Reference no: EM131129129

Find the mean and the variance of the hypergeometric distribution with n = 3, N = 16, and M = 10, using (a) the results of Exercise 64;

(b) the formulas of Theorem 7.

Exercise 64

Among the 16 applicants for a job, 10 have college degrees. If 3 of the applicants are randomly chosen for interviews, what are the probabilities that

(a) none has a college degree;

(b) 1 has a college degree;

(c) 2 have college degrees;

(d) all 3 have college degrees?

Theorem 7

The mean and the variance of the hypergeometric distribution are

Reference no: EM131129129

Questions Cloud

Why are secured loans an important method of lending : Why are secured loans an important method of lending for financial institutions?
A quality control engineer inspects a random sample : A quality control engineer inspects a random sample of two hand-held calculators from each incoming lot of size 18 and accepts the lot if they are both in good working condition; otherwise, the entire lot is inspected with the cost charged to the ..
How do you suppose that proteins manage to fold so quickly : Where would you expect the ends of α helices to be located in α protein? Why - How is it possible for a protein to change over 70% of its amino acids and still fold in the same way? Can you mention one example?
Can a financial institution keep borrowers from engaging : Can a financial institution keep borrowers from engaging in risky activities if there are no restrictive covenants written into the loan agreement?
The variance of the hypergeometric distribution : Find the mean and the variance of the hypergeometric distribution with n = 3, N = 16, and M = 10, using (a) the results of Exercise 64;
What do you do if you''re the review leader : A formal technical review is effective only if everyone has prepared in advance. How do you recognize a review participant who has not prepared? What do you do if you're the review leader?
Identify carbon that is responsible for its optical activity : "When NaCl is dissolved in water, the water molecules closest to the ions will tend to orient themselves so that their oxygen atoms point toward the sodium ions and away from the chloride ions.
Determine gonzalezs cost of goods sold and gross profit : For the month ended July 31, 2016, determine Gonzalez's (a) cost of goods sold, (b) gross profit, and (c) net income.
Income tax returns with illegitimate deductions : What is the probability that an IRS auditor will catch only 2 income tax returns with illegitimate deductions if she randomly selects 5 returns from among 15 returns, of which 9 contain illegitimate deductions?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Hyopthesis testing and z-distribution of new process

A new process has been implemented and it is stated to have an average cycle time of 120 seconds. A sample of 50 cycles yielded an average cycle time of 115 seconds, with a standard deviation of 2 seconds.

  What is the five step process for hypothesis testing

What is the five step process for hypothesis testing? Why or why not? What is the null hypothesis? Why is it important? What are its implications? Explain. You may use examples to show your understanding.

  A sample of 25 patients in a doctors office showed that

a sample of 25 patients in a doctors office showed that they had to wait an average of 35 minutes with a standard

  Determine the average and the variation

Determine the average and the variation for Brand 1 price, sales market share, and total revenue, using the weekly market survey data (descriptive statistics).

  An urn contains nine white balls and 11 black balls a ball

an urn contains nine white balls and 11 black balls. a ball is drawn and replaced. if the ball is white your opponent

  Sample from a poisson distribution with parameter

Let X1,..., Xn be a random sample from a Poisson distribution with parameter λ. Derive a (1 - α)100% large sample con?dence interval for λ.

  An automatic doorbell system rings a bell

An automatic doorbell system rings a bell whenever it detects someone by the door. The system uses a photodetector such that if a person is present, hypothesis H1, the photodetector output N is a Poisson random variable with an expected value of 1..

  Separation constant lead to non-trivial solutions

Suppose the boundary conditions are that u(x,y) vanishes on the lines x=0 ,x=3, y=0, and y=2. Derive the corresponding boundary conditions for f and g. Given k^2, show that only certain values of the separation constant lead to non-trivial solution..

  Calculation of the probability of accessing wal-mart website

Calculation of the Probability of Accessing Wal-Mart Website During Shopping Season

  Survey existing customers

Q: Italy restaurant in Rome consider to create new item on menu it consists of fish prepared in italy in italy way but japanese spices such as fusion cuisine they wat to get idea if customers like this menu item,

  Is dispersion of supplier a-s tire life is less than b

Supplier B's tires have an average life of 60,000 miles with a standard deviation of 2,000 miles. Which of the following statements is true?

  Calculate the range

Below are five (5) separate distributions. a. Calculate the Range b. Use the range to calculate the standard deviation c. Calculate the standard deviation (and show any difference)

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd