measures of central tendency Flashcards
(8 cards)
1
Q
what is the median?
A
the middle value
2
Q
how to calculate the median?
A
arrange the observations in order and it is the middle observation
3
Q
when is the median used?
A
continuous variables
4
Q
what is the mean?
A
the ‘average’
5
Q
how to calculate the mean?
A
Add up the observations and divide by the total number
6
Q
when to use the mean?
A
continuous variables
7
Q
what is the mode?
A
the most frequently occurring observation
8
Q
when to use the mode?
A
can be used for continuous by most appropriate for categorical variables
