Suppose that the mass of X is PX (1) = 0.12 PX (3) = 0.37 PX (27)
Question:
PX (1) = 0.12
PX (3) = 0.37
PX (27) = 0.42
PX (31) = 0.09
a. Find E(X).
b. Find E(X2).
c. Find Vary(X).
d. Find E(X2 - 4X).
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 69% (13 reviews)
a E X 1012 3037 27042 31009 1536 ...View the full answer
Answered By
Somshukla Chakraborty
I have a teaching experience of more than 4 years by now in diverse subjects like History,Geography,Political Science,Sociology,Business Enterprise,Economics,Environmental Management etc.I teach students from classes 9-12 and undergraduate students.I boards I handle are IB,IGCSE, state boards,ICSE, CBSE.I am passionate about teaching.Full satisfaction of the students is my main goal.
I have completed my graduation and master's in history from Jadavpur University Kolkata,India in 2012 and I have completed my B.Ed from the same University in 2013. I have taught in a reputed school of Kolkata (subjects-History,Geography,Civics,Political Science) from 2014-2016.I worked as a guest lecturer of history in a college of Kolkata for 2 years teaching students of 1st ,2nd and 3rd year. I taught Ancient and Modern Indian history there.I have taught in another school in Mohali,Punjab teaching students from classes 9-12.Presently I am working as an online tutor with concept tutors,Bangalore,India(Carve Niche Pvt.Ltd.) for the last 1year and also have been appointed as an online history tutor by Course Hero(California,U.S) and Vidyalai.com(Chennai,India).
4.00+
2+ Reviews
10+ Question Solved
Related Book For
Introduction to Probability
ISBN: 978-0716771098
1st edition
Authors: Mark Daniel Ward, Ellen Gundlach
Question Posted:
Students also viewed these Statistics questions
-
Let X be the number of smoke alarms in an apartment. From government data, you find the mass of X is px(0) = 0.05 px(l) = 0.15 px(2) = 0.35 px(3) = 0.30 Px(A) = 0.10 Px(5) = 0.05 Assume each alarm...
-
Suppose that X is a Poisson random variable, where pX(k) = ek/k!, k = 0, 1, . . . . (a) Does the random variable W = 3X have a Poisson distribution? (b) Does the random variable W =3X +1 have a...
-
Suppose that X and Y are discrete random variables with Find pX (x) and pY (x). 4-- Pa. (x , y) =rly!(4-x-y)! (2) (3) (b
-
1. The operations manager for a well-drilling company must recommend whether to build a new facility, expand his existing one, or do nothing. He estimates that long-run profits (in $000) will vary...
-
Simple Plant manufactures DNA test strips. Manufacturing overhead is applied to units produced using direct labor dollars as the allocation base. The overhead rate is calculated prior to the...
-
The current through inductance L is given by I = I 0 sin t. a. Find an expression for the potential difference V L across the inductor. b. The maximum voltage across the inductor is 0.20 V when L =...
-
Rites of passage, rites of intensification, prayer, and magic are important in most people's lives. How have you experienced any of these in your own life?
-
Wainwright Corporation had the following activities in 2010. 1. Sale of land.............................................................$180,000 2. Purchase of...
-
4. A ramp is set up at the rear of a cargo van to aid in loading material. The ramp is 9 feet long (along the diagonal) and the height from the ground to the cargo floor of the van is 3.5 feet. What...
-
What motivates a parent to bribe key people to get their kid admitted to a prestigious university? That is the ethical question of Operation Varsity Blues. In March 2019, the story broke of an...
-
Let X be the number of is that appear. a. Find E(X). b. Find E(X2). c. Find Var(X).
-
Michael plays a random song on his iPod. He has 2,781 songs, but only one favorite song. Let X be the number of songs he has to play on shuffle (songs can be played more than once) in order to hear...
-
How many address inputs would there be on a 1M 1 DRAM chip?
-
Sephora, a premium cosmetics retailer, has eamed tremendous loyalty by extending their brand across what its customers valueall things beauty. The company understands that its customers want to enjoy...
-
How can an ABC framework help in modelling the costs of a public service?
-
Go back to the data of Table 5.11. Cover up the answer in Table 5.12 and then attempt to write out the profit calculation under absorption costing. Add a note of narrative explanation to each line as...
-
Explain what is meant by under-recovery and over-recovery of overhead cost.
-
K. Blake is employed at the rate of 6 per hour. During the week to 25 May 2012 he works 35 hours. According to the tax and National Insurance tables he should pay income tax 28 and National Insurance...
-
Find the area of the surface over the given region. Use a computer algebra system to verify your results. The part of the cylinder r(u, v) = a cos ui + a sin uj + vk, where 0 u 27 and 0 y b
-
Suppose that you are part of a virtual team and must persuade other team members on an important matter (such as switching suppliers or altering the project deadline). Assuming that you cannot visit...
-
The chest measurements for 5738 Scottish militiamen in the early 19th century are given below. Chest sizes are measured in inches, and each observation reports the number of soldiers with that chest...
-
Assume that the chest measurements in Exercise 6.90 are normally distributed with a mean of = 39.83 and standard deviation of = 2.05. a. What proportion of the observations would lie between 36.5...
-
In Exercise 1.67, Allen Shoemaker derived a distribution of human body temperatures, which has a distinct mound-shape. Suppose we assume that the temperatures of healthy humans is approximately...
-
Discuss the challenges and opportunities of scaling up process intensification concepts from laboratory-scale experiments to industrial-scale applications, addressing issues related to...
-
Suppose the pressure in the esophagus is - 1.95 mm Hg while that in the stomach is + 18.5 mm Hg. To what height, in centimeters, could stomach fluid rise in the esophagus, assuming it has a density...
-
When light of wavelength190nm falls on acesiumsurface, electrons having a maximum kinetic energy of 4.39eV are emitted. Find values for the following. (a) the work function of cesium eV? (b) the...
Study smarter with the SolutionInn App