# Shared Flashcard Set

## Details

S3.1 - Measures of Central Tendency
Measures of Central Tendency
15
Mathematics
Graduate
11/04/2013

## Cards Return to Set Details

Term
 3 things to look at when looking at distribution
Definition
 1. Shape2. Center3. Spread
Term
 Average
Definition
 The center of a data set
Term
 Outliers
Definition
 Unusual data values
Term
 Arithmetic mean
Definition
 Computed by determining the sum of all the values of the variable in the data set and dividing by the number of observations
Term
 Population arithmetic mean
Definition
 Computing mean (mew) using all the individuals in a population
Term
 Sample arithmetic mean
Definition
 Computing mean (x-bar) using sample data
Term
 Median
Definition
 The value that lies in the middle of the data when arranged in ascending order (M)
Term
 A numerical summary of data is resistant if
Definition
 Extreme values relative to the data do not affect its value substantially
Term
 Mean smaller than median is skewed
Definition
 Left
Term
 Mean larger than media is skewed
Definition
 Right
Term
 Mean roughly equal to median is
Definition
 Symmetric
Term
 Mode
Definition
 The most frequent observation of the variable that occurs in the data set
Term
 No mode
Definition
 If no observation of a data set occurs more than once
Term
 Bimodal
Definition
 A data set with two modes that occur in the highest frequency
Term
 Multimodal
Definition
 A data set with three or more data values that occur in the highest frequency
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