Information about the random variables

Assignment Help Basic Statistics
Reference no: EM132164442

We have the following information about the random variables X and Y

ux=4/5. uy=8. ox2=2/75. oy2=11/225 oxy= 4/225

u=mu and o= sigma

Calculate the variance of Z = 5X-3Y. Use 3 decimal places to give your answer.

Reference no: EM132164442

Questions Cloud

Identify the null and alternative hypotheses : Use a chi X2-test to test the claim sigma squared equals 0.42 at the alpha equals 0.10 significance level using sample statistics s squared equals 40.6
Create appropriate functions for these classes : Create appropriate functions for these classes, and write a main()function that instantiates and uses objects of each class.
Read and use files grocery hardware store chores : Add as many items as necessary Delete as many items as necessary Move between lists as often as my little heart desires.
Geometric distribution assume the probability : Using geometric distribution assume the probability that you will make a sale on any given telephone call is 0.19. Find the probability that you
Information about the random variables : We have the following information about the random variables X and Y
Assuming a population standard deviation transaction prices : An online used car company sells second-hand cars. For 30 randomly selected transactions, the mean price is 2200 dollars.
Write a function addup that adds up all the numbers : Write a function addup(x, y) that adds up all the numbers between x and y (inclusive), and returns their sum as its result.
Illustrate the distributions involved : a) Use the fo ur steps of hypothesis testing b) Illustrate the distributions involved
How does central limit theorem apply to this problem : In a random sample of 36 people, find the probability that the average amount spent is more than $61.50. How does central limit theorem apply to this problem?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

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