Term

Definition
The number or value that occurs the most 


Term

Definition
The mid point in a set of numbers of values 


Term
What is the Mean and what is the formula? 

Definition
The average of all the values or numbers. Mean = Total Observation/ Number of Observations 


Term
What are the 3 forms of distribution? 

Definition
Symmetrical, Positive Skew and Negative Skew 


Term

Definition
The difference between the highest and lowest value. 


Term
What is a Quartile, Interquartile Range and Quartile Deviation? 

Definition
Quartile Q1 (25%), Q2(50%), Q3(75%) variables Interquarile Range Q3 Q1 Quartile Deviation (Q3Q1)/ 2 


Term
What are the Formulas that indentify Quartiles? 

Definition
(0.25(n+1)) (0.5(n+1)) (0.75(n+1))
n= total number of observation 


Term
What is Standard Deviation? 

Definition
It is the root mean square (rms)deviation of the values from their aritmetic mean. 

