Term

Definition
Descriptive measures that indicate where the center or most typical value of a data set lies 


Term

Definition
Is the sum of the observations divided by the number of observations 


Term

Definition
arrange numbers in increasing order, it is the one in the middle or the average of the two in the middle 


Term

Definition
the number that occurs the most often 


Term

Definition
Not sensitive to the influence of a few extreme observations 


Term

Definition
when the smallest and the largest observations are removed before computing the mean 


Term
Population mean or mean of the variable 

Definition
the mean of the population data 


Term

Definition
The mean of the sample data 


Term

Definition
the number of observations 


Term

Definition
For a variable x, the mean of the observations for a sample is called a sample mean and looks like what? 


Term

Definition


Term

Definition
Measures variation by indicating how far, on average, the observations are from the mean 


Term

Definition
How far each observation is from the mean 


Term
Sum of Squared Deviations 

Definition


Term
Sample Standard Deviation 

Definition


Term
Variation and the Standard Deviation 

Definition
The more variation there is in a data set, the larger is its standard deviation 


Term
Computing Formula for a Sample Standard Deviation 

Definition


Term

Definition
Atleast 89% of the observations lie within three standard deviations to either side of the mean 


Term

Definition
roughly 99.7% of the observations lie within three standard deviations to either side of the mean 


Term

Definition
data set divided into hundreths or a 100 equal parts 


Term

Definition
Divide a data set into tenths 


Term

Definition
divide a data set into fifths 


Term

Definition
Divide a data set into quaters 


Term

Definition
bottom 25% of data from the top 75% of Q2 


Term

Definition


Term

Definition
the median of the portion of the entire data set that lies at or above the median of the entire data set 


Term

Definition
IQR is the difference between the first and third quartiles IQR=Q3  Q1 


Term

Definition


Term

Definition


Term

Definition


Term

Definition
1) Determine the 5number summary 2) Draw a horizontal axis on which the numbers obtained in step 1 can be located. Above this axis, mark the quartiles and the min and max with vertical lines 3) Connect the quartiles to make a box and then connect the box to the min and max with lines 


Term
To construct a modified boxplot 

Definition

