Math Is Fun Forum

reyer234

Guest

how to calculate xbar?

hi! how do u calculate xbar as in:
_
X

so if X is 1, what would xbar be?

HallsofIvy

Guest

Re: how to calculate xbar?

The symbol
_
X
  can represent a number of things.  Which do you mean?  I might guess at "mean value" which means the arithmetic average of a set of numbers.  In particular, if by "X= 1"  you mean the mean value of the "singleton set" {1}, then the obvious answer is "1"!

hutchinsondb

Member

Registered: 2007-07-22

Posts: 0

Re: how to calculate xbar?

hi! how do u calculate xbar as in:
_
X

so if X is 1, what would xbar be?

JaneFairfax

Member

Registered: 2007-02-23

Posts: 6,868

Re: how to calculate xbar?

Complex conjugate.

More usually, a complex number is represented by z. If

, then

.

If

. Thus,

.

TheMathHelper

Member

Registered: 2015-02-03

Posts: 1

Re: how to calculate xbar?

Alright I will be blatant and quick

So, -
     X means the "mean" either of a data distribution or set, and 'mean' means "average"

You can use the mean for finding the "Variance" of Standard deviation in statistics.... Hope this helped!