Question: CHALLENGE Deviations from the mean sum to zero. Use the definition of the mean x to show that the sum of the deviations xi

CHALLENGE Deviations from the mean sum to zero.

Use the definition of the mean ¯x to show that the sum of the deviations xi − ¯x of the observations from their mean is always zero. This is one reason why the variance and standard deviation use squared deviations.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Business Statistics Communicating Questions!

Parents income and student loans. How well does the income of a college students parents predict how much the student will borrow to pay for college? We have data on parents income and college debt...

Identify the compound with molecular formula C3H5Cl3 that gives the following 13C NMR spectrum. 200 175 75 50 25 0 (ppm)

Consider a dice with the property that the probability of a face with n dots showing up is proportional to n. The probability of face showing 4 dots is: Select one: O a. 4/21 O b. 1/6 O C4/6 O d. 1/7

a technique for evaluating a series of financial statement data over a period of time is

What is a data lake, and when might a firm want to use one?