312 results

**Statistics**

hii. I have a question about pdf and cdf.. I couldn't solve it Please help me :/ 1) the pdf of the random var. X is given by f(x)= (3/8)(x+1)^2 if -1<x<1 0 if otherwise Find the pdf of a) Y=1-X^2 b) Y=1-X^2 ifx<=0 and Y=1-X if x>0

**study skills**

what is the persistence triangle? This website discusses a persistance triangle and shows a clear diagram of it. http://www.habits-of-mind.net/pdf/persist.pdf Thank you for using the Jiskha Homework Help Forum. Here is a pdf file to download that will tell you all about the "...

**math**

let X1,X2,X3 be random sample with pdf f(x)=exp(-x),x>0,find the joint pdf of Y1=X1/X2, Y2=X3/(X1+X2) ,Y3=X1+X2, and find pdf of Y1. Are Y1,Y2,Y3 independent?

**math**

let X1,X2,X3 be random sample with pdf f(x)=exp(-x),x>0,find the joint pdf of Y1=X1/X2, Y2=X3/(X1+X2) ,Y3=X1+X2, and find pdf of Y1. Are Y1,Y2,Y3 independent?

**math**

Let x1,x2,x3 be random sample with pdf f(x)=exp(-x),x>0 find the joint pdf of y1=x1/x2, y2=x3/(x1+x2),y3=x1+x2 find pdf of y1 Are y1,y2,y3 independent?

**math**

Let x1,x2,x3 be random sample with pdf f(x)=exp(-x),x>0 find the joint pdf of y1=x1/x2, y2=x3/(x1+x2),y3=x1+x2 find pdf of y1 Are y1,y2,y3 independent?

**Probability**

Suppose that X has a PDF of the form f(x) {1/x^2 if x>= 1 { 0 otherwise For any x>2, the conditional PDF of X, given the event X>2 is (Your answer should be an algebraic function of x)

**PDF**

Please tell me a software to edit ,write PDF files with all the necessary functions in a word document that i can free download

**Fire protection**

Can someone please explain the following stages of fire: 1.Incipient Phase 2. Rollover 3. Steady Burning Phase 4. Flashover 5. Hot-Smoldering Phase 6. Backdraft These sites explain the stages of fire. http://sageauthoring.com/fdny/ft&p/ftpeng04.pdf http://www.maiif.net/pdf/...

**internet basics**

the software program you need to have to read pdf file ,such as the pdf files you download from your my course page is a.shock wave b.adobe reader c.applet d.flash my answer is b

**Downloading" repost**

Hi, I need some help downloading two PDF files. They are for volunteer work at Roswell Cancer Institute. I believe there is a brochure and an application form: 19433 Volunteer Application Form - single pages.pdf 68K View as HTML Download Volunteer Brochure.pdf 226K View as ...

**Religion Exam**

I am trying to find online materials such as old exams that I can use to prepare for my religion exam. I am looking for ones that are non-PDF, as my computer can't open PDF files.

**Statistics**

Hi * Suppose X has the pdf f(x)=(1/2)e^-|x| if -∞<x<∞ a)find the pdf of Y=|X|^3 b) Let W=0 if x<=0 and W=1 if x>1. Find cdf (cum.dist.func) of W.

**global studies**

the four major kinds of plant life in the United states are:tundra,grassland,desert scrub, and? Thank you for using the Jiskha Homework Help Forum. What about forests and flowering plants? P.S. Although the following link may not answer your question, it is very interesting ...

**probability**

Random variables X and Y are distributed according to the joint PDF fX,Y(x,y) = {ax,0,if 1≤x≤2 and 0≤y≤x,otherwise. 1 Find the constant a. a= 2 Determine the marginal PDF fY(y). (Your answer can be either numerical or algebraic functions of y). For 0&#...

**Probability**

Random variables X and Y are distributed according to the joint PDF fX,Y(x,y) = {ax,0,if 1≤x≤2 and 0≤y≤x,otherwise.} 1. Find the constant a. 2. Determine the marginal PDF fY(y). (Your answer can be either numerical or algebraic functions of y). For 0&#...

**Statistics**

2. Given the cumulative distribution function (cdf) F(x)=(0 x<4 (x-4)/4 4 <= x <8 1 x >=8 2.1 Using the cdf, compute P(5<X<6). 2.2 What is the pdf of X? 2.3 Using the pdf, compute P(X<7). 2.4 What is E(X)? 2.5 What is V(X)?

**Probability**

Consider the experiment of simultaneously tossing a die and a coin. Let X denote the number of heads and Y denote the number of spots showing on the die. a)construct a two-way table for the joint pdf b)Let Z=X+Y . Use the joint pdf to find the distribution or Z.

**probability **

Paul is vacationing in Monte Carlo. On any given night, he takes X dollars to the casino and returns with Y dollars. The random variable X has the PDF shown in the figure. Conditional on X=x, the continuous random variable Y is uniformly distributed between zero and 2x. ...

**citation of UNEP PDF online assessment/report**

How would I cite a document from the UNEP website? (PDF document) APA style? I've been looking but it looks like you have to cite it a special way? Is this true? I cannot personally find the, "session" or etc. It is a document evaluating the environment, not a resolution ...

**Probability**

Let X be a random variable that takes non-zero values in [1,∞), with a PDF of the form fX(x)=⎧⎩⎨cx3 if x≥1, 0,otherwise. Let U be a uniform random variable on [0,2]. Assume that X and U are independent. What is the value of the constant c? c= P(X...

**looking up a state**

I would like to look at bugs in Iowa and see the type of houses they live in also I would like to see how they live in that type of weather there. http://www.extension.iastate.edu/Publications/IAN606.pdf http://www.etenson.iastate.edu/publications/IAN606.pdf

**Philosophy**

Can someone tell me the misconceptions of the universe purpose? I have been looking for different opions but can not find any if you can point me to the right direction or give some of your ideas. thanks Thank you for using the Jiskha Homework Help Forum. Although I'm not sure...

**social studies**

if someone is found guilty for trespassing on someone else property such as throwing trash on other's property. What will most likely be judge decisions if he is found guilty for it? The sentences for different types of convictions vary from state to state. You'd have to look ...

**Probability**

Let X be a random variable that takes non-zero values in [1,∞), with a PDF of the form fX(x)=⎧⎩⎨cx3,0,if x≥1,otherwise. Let U be a uniform random variable on [0,2]. Assume that X and U are independent. What is the value of the constant c? c= - ...

**Math, statistics**

Problem 1: The PDF of exp(X) (6/6 points) Let X be a random variable with PDF fX. Find the PDF of the random variable Y=eX for each of the following cases: For general fX, when y>0, fY(y)= Solution: f_x(ln(y))/y When fX(x) = {1/3,0,if −2<x≤1,otherwise, we ...

**for LORI, English**

for LORI, English Thank you for using the Jiskha Homework Help Forum, BUT when you post under someone's else's post, we assume you are helping that person! Always use the "new post" when you have a questiion. Here are some things online re your assignment. 1. (Broken Link ...

**Calculus**

I'm doing statistics homework and am stuck on a problem using integration. The problem gives a distribution where for x>1, f(x) = k x^-6. I am then asked to "Determine the value of k for which f(x) is a legitimate pdf. " To be a legitimate pdf, the integral of f(x)dx has to...

**english**

i need some information about satire and epic in 17 and 18 century...characteristics and so on.. thank you [PDF] SATIRE AND POWER IN SEVENTEENTH-CENTURY FRANCE: THE CASE OF BOILEAU File Format: PDF/Adobe Acrobat on the predicament of the seventeenth-century French satirist. ...

**probability**

Suppose that you have two laptops, both of which you begin using at time 0. Each laptop will eventually fail, and we model each one's lifetime as exponentially distributed with the same parameter λ. The lifetimes of the two laptops are independent. One of the laptops will...

**Probability**

Suppose that you have two laptops, both of which you begin using at time 0. Each laptop will eventually fail, and we model each one's lifetime as exponentially distributed with the same parameter λ. The lifetimes of the two laptops are independent. One of the laptops will...

**safety**

What does the World Health Organization do to prevent starvation, aids/hiv, or other health issues? I recommend this article to you. You will find most answers there. http://www.genevabriefingbook.com/chapters/who.pdf WHO does not specifially distribute food to areas of ...

**statistics**

A researcher finds that two continuous, random variables of interest, X and Y, have a joint probability density function (pdf) given by: f(x,y)={cxy 0<=x<=1,0<=y<=1,x+y=>1, .........0 otherwise where c is a constant. (i) Find the value of c so that f(x,y) ...

**statistics**

A researcher finds that two continuous, random variables of interest, X and Y, have a joint probability density function (pdf) given by: f(x,y)={cxy 0<=x<=1,0<=y<=1,x+y=>1, .........0 otherwise where c is a constant. (i) Find the value of c so that f(x,y) ...

**english**

what is a level 1 question? http://www.friscoisd.org/schools/chs/docs/reading9th.pdf Good explanation here. =)

**probability**

This figure below describes the joint PDF of the random variables X and Y. These random variables take values in [0,2] and [0,1], respectively. At x=1, the value of the joint PDF is 1/2. (figure belongs to "the science of uncertainty) 1. Are X and Y independent? NO 2. Find fX(...

**Global History**

I need answers for "GLOBAL HISTORY REGENTS REVIEW" packet. Associated names are Mr. Moeller and Mrs. Sita. I can't find answers anywhere. The packet can be found blank online here: johnbowne DOT org/ourpages/auto/2011/1/31/49875088/Global_Regents_Review_Pack__blank_ DOT pdf I ...

**physical education**

These sites give the physical education objectives for Connecticut and West Virginia. (Broken Link Removed) http://www.state.ct.us/sde/dtl/curriculum/frpe.pdf

**probability**

The PDF of exp(X) Let X be a random variable with PDF f_X. Find the PDF of the random variable Y=e^X for each of the following cases: For general f_X, when y>0, f_Y(y)= f_X(ln y) --------- y When f_X(x) = {1/3,0,if −2<x≤1,otherwise, we have f_Y(y) = {g(y),0,...

**Probability**

This figure below describes the joint PDF of the random variables X and Y. These random variables take values in [0,2] and [0,1], respectively. At x=1, the value of the joint PDF is 1/2. Are X and Y independent? - unanswered Yes No Find fX(x). Express your answers in terms of ...

**Strategic**

What are some essential elements of a mission statement? Check this site. http://www.tgci.com/magazine/How%20to%20Write%20a%20Mission%20Statement.pdf

**math, help**

For this one i have no idea what formula or even how to set it up... Tow 6-sided dice are rolled. What is the porbability that the sum of the two numbers on the dice will be greater than 9? Notation: n1 is the number that die 1 shows, n2 is the number that die 2 shows. Then we...

**Science**

Why is it impossible to have an Arctic Circumpolar Current? http://www.whoi.edu/science/PO/arcticgroup/projects/proshjohnson-two-regimes.pdf

**probability**

Let X and Y be independent random variables, each uniformly distributed on the interval [0,1]. Let Z=max{X,Y}. Find the PDF of Z. Express your answer in terms of z using standard notation. For 0<z<1, fZ(z)= - unanswered Let Z=max{2X,Y}. Find the PDF of Z. Express your ...

**probability**

Let X and Y be independent random variables, each uniformly distributed on the interval [0,1]. Let Z=max{X,Y}. Find the PDF of Z. Express your answer in terms of z using standard notation . For 0<z<1, fZ(z)= 1 - unanswered 1 Let Z=max{2X,Y}. Find the PDF of Z. Express ...

**statistics**

Let X and Y be independent random variables, each uniformly distributed on the interval [0,1]. Let Z=max{X,Y}. Find the PDF of Z. Express your answer in terms of z using standard notation . For 0<z<1, fZ(z)= 1 - unanswered 1 Let Z=max{2X,Y}. Find the PDF of Z. Express ...

**Biology**

Explain how the lacfk of genetic diversity found in populations of endangered species might hinder their recovery Genetic diversity is needed to cope with environmental changes. With genetic diversity, if there are large changes in the environment, at least some individuals ...

**Researching project**

I'VE BEEN DESPERATELY LOOKING THROUGH SITE AND SITES FOR HOUR BUT I CANT FIND ANY article that suit my teacher's taste and he told me to re do it again... anyone please help this is what he wrote "I am looking for published articles related to the Internet2. It is a network ...

**Biology-squid anatomy**

Why do squids need to have three separate hearts? Since this is not my area of expertise, I searched Google under the key words "Squid anatomy hearts" to get these possible sources: http://www.thewildones.org/Curric/squid.html http://en.wikipedia.org/wiki/Squid http://72.14....

**physics**

A person has far points 8.44cm from the right eye and 12.2cm from the left eye. WRite a presciption for the powers of the corrective lenses. Please help i tried to read to book and my notes but it doesnt show how to do this problem. http://www.owlnet.rice.edu/~phys126/Labs/...

**science**

I need to find a good site with information about the bacteria Alcaligenes faecalis. I haven't been able to find anything no matter how much I searched, only bits and pieces. Would u know any good sites? http://www.uic.edu/depts/mcmi/faculty/silver/Combined%20Cosmids%20Map.pdf

**English-CItation**

How to cite a PDF file?

**GT English(honors)**

For summer work i have to make a notes summary of each required book ive read..the problem is ive never heard or even seen a notes summary before and i am a visual learner can someone please send me an example of one or at least a format of how its done? There are several ways...

**Science**

how do kenetic and potential energy effect a basic pendulum? How does gravity effect it? Since this is not my area of expertise, I searched Google under the key words "pendulum kinetic potential energy gravity" to get these possible sources: http://galileo.phys.virginia.edu/...

**Poetry**

I need to learn the different meters and rhyming patterns of poetry?? Thank you for using the Jiskha Homework Help Forum. First of all is a pdf file: 1. server.remc11.k12.mi.us/bstpract/bstpract/165/165.pdf 2. http://owl.english.purdue.edu/owl/resource/570/01/ 3. http://en....

**economics**

john and jeremy are utilitarians. john believes that labor supply is highly elastic, whereas Jeremy believes that labor supply is quite inelastic. How do you suppose their views about income redistribution differ? Since this is not my area of expertise, I searched Google under...

**ethnics**

what do statistics reveal about the Asian diversity in America? What do you think is the future of Asian diversity in America? This site has a chart of the country's of origin for our Asian population. (Note that it does not include far western Asia [Middle East].) http://www....

**Physics**

I'm not sure how to do the last problem in this pdf: h t t p : / / t i n y u r l . c o m / y 9 q f 4 7 4 Any help would be appreciated. Thank you!

**Maths**

If the joint pdf X and Y is given by f(x,y) = (1-e-x)(1-e-y) , for x>0,y>0 0 , otherwise Find P(1<x<3,1<y<2).

**Maths**

If the joint pdf X and Y is given by f(x,y) = (1-e-x)(1-e-y) , for x>0,y>0 0 , otherwise Find P(1<x<3,1<y<2).

**government- banking industry**

What happened when the government deregulated the banking industry? Since this is not my area of expertise, I searched Google under the key words "bank deregulation" to get these possible sources: (Broken Link Removed) http://www.socialstudieshelp.com/Eco_Deregulation.htm http...

**coins**

is it possible to arrange 5 coins so that every coin touches every other coin? coins have to lay flat on the table, and coins cannot be stacked It depends on what you mean by "flat" and stacked. http://www.nada.kth.se/kurser/kth/2D1431/02/lecture11_sl.pdf

**SCIENCE**

Which currents are cold and which are warm? North Equatorial current, Equatorial counter current, South equatorial current, Peru current, Florida current, Guinea current, and Falkland current. I have found out 11 others but not these. http://ioc.unesco.org/oceanteacher/...

**probability**

Let X be a random variable with PDF fX. Find the PDF of the random variable Y=eX for each of the following cases: For general fX, when y>0, fY(y)= - unanswered fX(eyy) fX(ln yy) fX(ln y)y none of the above When fX(x) = {1/3,0,if −2<x≤1,otherwise, we have fY(y...

**Statistics**

I'm not sure how to do #3 in this PDF: tinyurl [.][com][slash] yefzpv8

**probability**

Adefective coin minting machineproducescoinswhoseprobability ofheadsisarandomvariable P with PDF 1+sin(2πp), if p ∈ [0,1],fP (p)= 0, otherwise. Inessence,aspecificcoinproducedby thismachinewillhavea fixedprobability P = p of giving heads, but you do not know ...

**English**

I have to write a paper for english (i'm in college). The topic is 'what's more important: book smarts or street smarts.' I've decided to go the route of seeing what kind of professional jobs look for what, and making it a report rather than an essay. However, i'm having a lot...

**Home Economics**

Help Me!!! I need it for Tuesday!!! Why is care necessary in the handling and storage of frozen foods??? These sites explain the necessity to carefully handle and store frozen foods. http://www.aces.edu/pubs/docs/E/EFNEP-0191/EFNEP-0191.pdf?PHPSESSID=...

**biology**

describe two practical applicatons for being able to extract DNA from cells Since this is not my area of expertise, I searched Google under the key words "DNA extraction use" to get these possible sources: http://en.wikipedia.org/wiki/DNA_extraction http://www.accessexcellence...

**Math**

Go to: //mmpc.svsu.edu/54thMMPC-PI-Test.pdf Can you explain why number 12 is D?

**computers**

I need someone help me to modify PDF file by any program Photoshop...

**Life Science**

How did Mendel novel approach contribute to his success in describing how traits are inherited Thank you for using the Jiskha Homework Help Forum. Here are some sites for you: 1. http://en.wikipedia.org/wiki/Heredity (at the bottom, be sure to click for additional information ...

**bio**

1. DAG activates _______.In turn kinase_____ its own substrate a. PKA, phosphatates b. PKA, phosphorylates c. PKC, phosphates d. PKC,phosphorylates I think the right answer is d, please check Since this is not my area of expertise, I searched Google under the key words "DAG ...

**social studies**

I would like to know about 5 animals &5 flowers of the New York State. These sites have a lot of information about the native wildflowers and animals in New York. http://www.nativeplantcenter.org/LBJ%20NPC%20Article.pdf#search=%22wildflowers%20native%20%20New%20York%22 (Broken...

**economics**

case study regarding conssumer awareness in india &decision taken by consumer court Check these sites. http://www.hindustantimes.com/news/181_1717965,00020016.htm http://www.ccsindia.org/psp_india.pdf

**chem**

The ion product Of D2O is 1.35x 10^-15 at 25 degrees C. For a solution to be acidic the PDF must be what?

**Mercury**

is mercury gray or a orange? neither It is metalic. I guess grey is by far the closest though. I think it's silver!!! Are you talking about the metal or the planet? Since neither is not my area of expertise, I searched Google under the key words "mercury color" to get these ...

**environmental science**

This was the question I had- How is nutrient buil-up in the aquatic system affect the pH? What other factors in the aquatic system affect the pH? Since this is not my area of expertise, I searched Google under the key words "aquatic system pH" to get these possible sources: ...

**Probability**

A defective coin minting machine produces coins whose probability of Heads is a random variable Q with PDF fQ(q)={3q2,0,if q∈[0,1],otherwise. A coin produced by this machine is tossed repeatedly, with successive tosses assumed to be independent. Let A be the event that ...

**maths**

file:///C:/Users/abuab/Downloads/1MA0_1H_que_20160526%20(1).pdf question 19 what is it called? and how do you work it out

**science**

am stuck on the titration on maleic acid. am kindly asking for analytical chemistry by skoog.pdf. this assighnment is killing me. thank you

**math**

find the cumulative function, mean and variance of the following continuous pdf of a random variable X. f(x)=x/2 for 0<x<1 f(x)= 1/2 for 1<x<=2 f(x)=(3-x)/2 for 2<x<3 f(x)=0 otherwise

**physical science**

How much heat is required to raise the temperature of a 10.0 kg of aluminum by 80 degrees Celsius? Look up the specific heat of aluminum. The units will be Calories/kg*degC or Joules/kg*degC. Multiply that number by the temperature change (80 C) and the mass (10.0 kg). See ...

**Chemistry**

How to know overall charge of molecule? see question # 12 here, why is it -1? how do you know? itech.pjc.edu/tgrow/2210/chm2210ps4sol.pdf

**probability**

t the discrete random variable X be uniform on {0,1,2} and let the discrete random variable Y be uniform on {3,4}. Assume that X and Y are independent. Find the PMF of X+Y using convolution. Determine the values of the constants a, b, c, and d that appear in the following ...

**geography**

in this assignment, I am given the latitude and longitude coordinates and these coordinates either pinpoint t city, a nation, an ocean, a sea or mountains...however the assignment did not come with a map to locate the coordinates. where can i go for the answers If you have ...

**physics**

need help with tthe first question on this page!!! please mail.rdcrd.ab.ca/~smolesky/FOV1-000293AF/5Matter/PracticeWritten.pdf

**GEOGRAPHY ? SCIENCE**

The theory that described the creation, destruction, and mobility of the oceanic crust is called Hydroplate Theory? I think this is right but not sure. Check these sites for two possible answers. http://www.tcd.ie/Geology/MAIN-PAGE/CE3A8/plates.pdf http://wiki.cotch.net/index....

**math**

Suppose that fifteen observations are chosen at random from the pdf f_Y(y) = 3y^2, 0<=y<=1. Let X denote the number that lie in the interval (1/2, 1). Find E(X). E(X) is the expected value or average.

**federal court system/criminal justice**

There is a large round up of gang members, this is a federal case but is being supported by about 50 local officers and state troopers. I need help please, coordinating the informaiton for briefing on the process at the federal court building. The briefing is to detail what ...

**chemistry**

how much calcium is htere in 2.30 L of 0.0450 M calcium hydroxide solution ? pdf

**NEUROSCIENCE**

freepdfhosting[dot]com/b75c984836.pdf replace " [dot] " with a period. HELP?

**chemistry**

how much calcium is there in 2.30 L of 0.0450 M calcium hydroxide solution ? pdf

**Biology URGENT!!!!**

What are five characteristics that scientists use to group dissimilar organisms into common groups? List references too please. Thank you. http://faculty.fmcc.suny.edu/mcdarby/Majors101Book/Chapter_02-A_Bit_of_History/02-Explaining-Life-Classification.htm http://www.uoregon....

**Rutgers**

Marketing management Customer satisfation and customer value. How are those related? Since this is not my area of expertise, I searched Google under the key words "customer satisfaction value" to get these possible sources: http://www.adamssixsigma.com/Newsletters/...

**Math**

file:///G:/STAAR-G7-2014Test-math.pdf please help

**psychology**

What are the 3 c's of johnson and johnson described for safe and productive schools. Give an example of how this might work. What is the link that researchers have found between aggression and students conflict This abstract reviews the 3 c's. I'm sure you can think of ...

**Math**

rcsdk12 . org/cms/lib04/NY01001156/Centricity/Domain/5668/10.1%20Solid%20Geometry%20Classwork.pdf In question 4, is the first choice the answer?

**Music**

I am being homeschooled and am having a tough time with my music course. The teacher doesn't really want to help me maybe you can. I need to write a short fugue with 4 voices in the key of g minor and i need to include any necessary accidentals. Thank you for using the Jiskha ...

**math**

The lifetime (In Years) of Manufactured product is Y=5X^0.7, where X has an exponential distribution with mean 1. Find the distribution function of PDF Y.