Exam 1 Definitions Part 3 Flashcards
1
Q
Arithmetic mean
A
The number obtained by adding the values and dividing the total by the number of values
2
Q
£
A
addition
3
Q
X
A
variable
4
Q
n
A
number of data values in a sample
5
Q
N
A
number of data values in a population
6
Q
X-bar
A
Mean of a set sample values
7
Q
Mu
A
Mean of all values in a population
8
Q
Median
A
The middle value when the original data values are arranged in order of increasing magnitude
9
Q
Mode
A
The score that occurs most frequently
10
Q
Midrange
A
The value midway between the highest and lowest values in the original data set
11
Q
Symmetric
A
Data is symmetric if the left half of its histogram is roughly a mirror of its right half
12
Q
Skewed
A
Data is skewed if it is not symmetric and if it extends more to one side than the other
