ch2 Flashcards
1
Q
frequency distribution
A
an organized tabulation of the number of individuals located in each category on the scale of measurement.
2
Q
proportion formula
A
frequency over population P =f/N
f
_
N
3
Q
percentage formula
A
%= P/N(100)
4
Q
relative frequencies
A
The proportion of the total distribution rather than the absolute frequency. Used for population distributions for which the absolute number of individuals is not known for each category.
5
Q
rank or percentile rank
A
The rank or percentile rank of a particular score is defined as the percentage of individuals in the distribution with scores at or below the particular value.
6
Q
cumulative percentage formula
A
c%=cf/N(100%)
