Search
Browse
Create
Log in
Sign up
Log in
Sign up
Upgrade to remove ads
Only $1/month
Statistics (GRE Math Formula Book)
STUDY
Flashcards
Learn
Write
Spell
Test
PLAY
Match
Gravity
Terms in this set (6)
Mean
For a set of n numbers: total sum / n
Median
Middlemost value when numbers are arranged in ascending order; for an even amount of numbers, take the average of the middle two
Mode
The number that occurs most frequently
Weighted Average
(proportion) x (group A average) + (proportion) x (group B average) + ...
Standard Deviation
SD = Sqrt((a-m)^2 + (b-m)^2 +(c-m0^2) +...)/n)) ;where a, b, and c are a set of numbers and m is the mean.
The standard deviation represents the average distance the data values are away from the mean.
Variance
value inside the square root of the standard deviation
Variance=SD^2
THIS SET IS OFTEN IN FOLDERS WITH...
Coordinate Geometry (GRE Math Formula Book)
10 terms
Word Problems (GRE Math Formula Book)
9 terms
GMAT Quant. General
89 terms
GRE Basic
500 terms
YOU MIGHT ALSO LIKE...
5
GRE Math | Kaplan Guide
EXST 2201 Test 2 Complete Review
91 terms
Business Statistics: For Contemporary Decision Mak…
22 terms
Central tendency and variation
22 terms
OTHER SETS BY THIS CREATOR
Data Analysis (ETS GRE Math Review)
34 terms
Probability (GRE Math Formula Book)
4 terms
Counting (GRE Math Formula Book)
6 terms
Geometry (Magoosh Math Book)
23 terms