Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Problem: Mean absolute deviation.
a) Calculate the mean absolute deviation E(|X - µ|) for X, the number on a six-sided die.
Your answer should be slightly smaller than the standard deviation. This is a general phenomenon, which occurs because the operation of squaring the absolute deviations before averaging them tends to put more weight on large deviations than on small ones.
b) Use the fact that Vαr(|X - µ|) > 0 to show that SD(X) > E(| - µ|), with equality if and only if |X - µ| is a constant.
That is to say unless | X - µ| is a constant, the standard deviation of a random variable is always strictly larger than the absolute deviation. If X is a constant, then both measures of spread are zero.
What is the difference between statistical significance and practical significance? What is a type I and type II errors in hypothesis testing? What would be examples of each? Explain
1. two draws will be made at random from a box containing 5 marbles red yellow green black and blue. the unconditional
For each of the following, indicate whether the type of probability involved is an example of a priori probability, empirical probability, or subjective probability.
suppose we roll one die repeatedly and let ni be the number of the roll on which i first appears. find the joint
You may assume the sample data comes from a population that follows a normal distribution.
The data in the Excel spreadsheet linked below indicate the selling prices of houses located on corner lots ("corner-lot houses") and of houses not located.
(Class Project) Let each student in the class respond to the question Which carbonated soft drink do you most prefer? so that the teacher can tally the results.
An amplifier having Ri = 1M Ω, Ro = 1kΩ, and Avoc = -104 is operated with a 1-kΩ load. A source having a Thévenin resistance of 2 MΩ and an open-circuit voltage of 3 cos(200 πt) mV is connected to the input terminals. Determine the output voltage ..
What is the bound on the error of estimation (or margin of error) for the 95% confidence interval for the population mean income?
Set up the appropriate null and alternative hypothesis for testing whether the original sample overestimated the average executive director annual salary.
the probability that an individual egg in a carton of eggs is cracked is 0.03. you have picked out a carton of 1 dozen
if 100 tires are randomly selected for shipment to an outlet, what is the probability that they are all good? should this outlet plan to deal with defective tires returned by consumers?
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd