Probability mass function mean and variance

Assignment Help Mathematics

Reference no: EM13121482

Probability Mass Function, Mean and Variance

A lot consisting of 100 fuses is inspected by the following procedure: 5 fuses are selected randomly, and if all 5 "blow" at the specified amperage, the lot is accepted. Suppose that the lot contains 10 defective fuses. Find the probabily of accepting the lot.

HINT: Let X ba a r.v. equil to the number of defective fuses in the sample of 5 and the result of the r.v. X is known as the "hypergeometric" r.v. with parameters (N,r,n)

(a) Find the pmf of X.

(b) Find the mean and variance of X.

Reference no: EM13121482

Questions Cloud

Write a paper on young adulthood : Write a paper on Young Adulthood, Discuss the physical development of the selected individual during young adulthood. Were there observable changes in growth, strength, and physical functioning? How did lifestyle impact health?

Which of the following statements about actin is false : Which of the following statements about actin is false?

Calculate hydrogen ion concentration in anode compartment : Consider the following cell: Pt|H2(g, 0.645 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.20 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V.

Potential manipulation by managers : Explain how adjusting entries provide for potential manipulation by managers. In addition, discuss how compensation arrangements may result in incentives for such manipulation to occur.

Probability mass function mean and variance : Probability Mass Function, Mean and Variance A lot consisting of 100 fuses is inspected by the following procedure: 5 fuses are selected randomly, and if all 5 "blow" at the specified amperage

Illustrate what was the impact on net income : Illustrate what was the impact on Mosby's 2012 net income as a result of this fair value hedge of a firm commitment?

What is the concentration after a dilution : Practitioners of homeopathic medicine believe that toxic substances, once appropriately diluted, can have healing effects, usually having the opposite effect of the symptoms of the original toxic compound. There are currently over 3,000 homeopathi..

Prewriting affects : Do this in a 150 words. What steps are included in the prewritin phase of essay writing?How do prewriting affects the success of an essay?

Illustrate what will be the effect on net operating income : the elimination of the Linens Department will result in a 10% decrease in the sales of the Hardware Department. If the Linens Department is dropped, illustrate what will be the effect on the net operating income of the company as a whole?

User Account

All Pages