Prove the variance computation formula

Assignment Help Basic Statistics

Reference no: EM131426186

Variance Computation Formula

Suppose X is a discrete random variable that takes on a finite number of values. Prove the variance computation formula. That is, show that

E[(X-μ)²] = E(X²) - μ²

Reference no: EM131426186

Questions Cloud

Identify the legal issues presented by these classifications : Summarize the factual background on how the students are classified; Identify the legal issues presented by these classifications; and Describe what equal protection requires.

Describe a decreased level of consciousness : What two words describe a decreased level of consciousness that does not put patients completely to sleep and allows patients to breathe on their own during a surgical procedure.

What happens to the price and quantity of toys : A new toy store opens. What happens to the price and quantity of toys and A new machine is invented to produce toys faster. What happens to the price and Quantity of toys?

Evaluate the effectiveness of the CRM : Spector (2012) observes that, "Training evaluation is done by conducting a research study to determine if the training was effective" (p. 189). Because this is the case, what steps in the research process would you take to evaluate the effectivene..

Prove the variance computation formula : Suppose X is a discrete random variable that takes on a finite number of values. Prove the variance computation formula.

Major healthcare delivery settings : Hospitals are one of the major healthcare delivery settings. In this topic, explain the definition of a hospital; discuss various types of hospitals based on size, services provided, or ownership; and discuss the evolution of hospitals in the U.S...

How does the first amendment apply to the given situation : In a 500-750-essay, discuss any legal issues regarding the grading of your student's essay and whether you could display the student's work. How does the First Amendment apply to this situation?

Is scientific creationism a plausible theory : How long would it have taken Noah and his family to collect and load the animals on the ark? How much time would it have taken to provide one meal for the animals? Is scientific creationism a plausible theory?

Demonstrate understanding of sayles : In your response, demonstrate understanding of Sayles' Chapter 11, pages 651-660. Use the Flash Timeline tool available in the lecture, and any other resources as needed.

User Account

All Pages