Central Tendency
What are the three measures?
Mean, Median and Mode!
What is mean commonly called?
Average
What is the median of the data?
Midpoint
the value that occurs most often in the distribution
What do the measures refer to?
Statistical methods
What symbol is used to denote the mean?
x
The data needs to be in array, meaning what?
placed in ascending or descending order
What is it called when there are more than one mode?
Multimodal
True/False: The term measures of central tendency describes the clustering of numerical values in a distribution of data within a research study.
True
How is the mean achieved?
by adding all scores and dividing by the total number
What can the median describe?
Ratio, interval or ordinal data
The mode can be used to describe which types of data?
All types
The ____ cannot be used to describe nominal data.
mean
What is the mean:
7,12,7,1,1,4,1
4.7
(1+1+1+4+7+7+12= 33 / 7 = 4.7)
What is the median:
7,12,7,1,1,4,1
4
(1,1,1,4,7,7,12)
What is the mode:
7,12,7,1,1,4,1
1
(1,1,1,4,7,7,12)