ch2

Question 1

frequency distribution

Answer 1

an organized tabulation of the number of individuals located in each category on the scale of measurement.

Question 2

proportion formula

Answer 2

frequency over population P =f/N

f
_
N

Question 3

percentage formula

Answer 3

%= P/N(100)

Question 4

relative frequencies

Answer 4

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.

Question 5

rank or percentile rank

Answer 5

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.

Question 6

cumulative percentage formula

Answer 6

c%=cf/N(100%)