Variance of the marginal distribution
Let X be a random variable with mean 3 and variance 2, and let Y be a random variable, such that for every x, the conditional distribution of Y given X = x has mean x and variance x2 . What is the variance of the marginal distribution of Y?
Expected delivery within 24 Hours
Two charges, -18 C and +4.9 C, are fixed in place and separated by 4.2 m. (a) At what spot along a line through the charges is the net electric field zero?
Revenues, production, and purchases budgets. The Suzuki Co. in Japan has a division that manu- factures two-wheel motorcycles. Its budgeted sales for Model G in 2013 is 900,000 units.
Calculate the cycle thermal efficiency and the net work per lbm of steam. You must draw a clearly labeled schematic and a corresponding T-s diagram.
On January 1, Bacon Company purchased as an investment a $1,000, 7% bond for $1,020. The bond pays interest on January 1 and July 1. What is the entry to record the interest accrual on December 31?
The 20 kg mass is released from the position shown and falls on the linear spring (k = 30000 N/m). Use conservation of energy to determine how far down the mass moves after contacting the spring.
Season tickets for the Panthers are prices at $320 and include 16 games. Revenue is recognized after each game is played. When the season began, the amount credited to Unearned Ticket Revenue was $1,728,000.
A professor uses a normal distribution to determine grades from a class of 100 students. The syllabus states that students with a final grade equal to 1.4 standard deviations above the mean (or greater) will receive as "A" grade.
During the month of March, Lavonis Company's employees earned wages of $64,000. Withholdings related to these wages were $4,896 for Social Security (FICA), $7,500 for federal income tax, $3,100 for state income tax, and $400 for union dues.
1946184
Questions Asked
3,689
Active Tutors
1421639
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
A primigravida client is in the fourth stage of labor after the delivery of a newborn male infant. Which information should the nurse:
After two miscarriages, a client is instructed to increase her daily intake of foods that includes folic acid. The client does not like green leading vegetable
In preparing a gravid client for a triple screen analysis, which action: A. Assist the client to left lateral tilt position
A client who is positive for Neisseria gonorrheae vaginally delivered a newborn. Which medication should the nurse administer to the newborn?
When discussing the differences between a nurse leader and a nurse manager, the student correctly identifies characteristics of transformational leaders
At 0600 while admitting a woman for a scheduled repeat cesarean section (C-section), the client tells the nurse that she drank a cup of coffee
A client who suspects she is pregnant tells the nurse she has a peptic ulcer E drug. How should the nurse respond?