TutorTeddy.com, Tutoring, Dallas, TX
Like us for free help*

Statistics Symbols - X



Ask any Statistics/Probability/Math Question

Symbol: X

Meaning:
In regression analysis, it is the explanatory or independent variable.
Formula used:
For example the marks obtained by student depend on the IQ score. Here, IQ score is the independent variable or X.

Symbol: X~ (OR X follows)

Meaning:
It is distribution of X.
Formula used:
The random variable X~ a specific distribution for example, X~Bin (n, p)

Symbol: x̄

Meaning:
It refers to the arithmetic mean or average of X.
Formula used:
For ungrouped data,
For ungrouped data,
Used in:
Measures of Central Tendency.

TutorTeddy.com & Boston Predictive Analytics

[ Email your Statistics or Math problems to tutor@aafter.com (camera phone photos are OK) ]


Boston Office (Near MIT/Kendall 'T'):
Cambridge Innovation Center,
One Broadway, 14th Floor,
Cambridge, MA 02142,
Phone: 617-395-8864


Dallas Office (Near Galleria):
15950 Dallas Parkway,
Suite 400,
Dallas, TX 75248,
Phone: 866-930-6363

Copyright 2011 tutorteddy.com. All Rights Reserved. | By using our site, you agree to our TOS.