how often we get a certain number/response in our data

a table that displays the frequency for each value of a variable

the percentage of responses for each category

relative frequency x 100

a way to graphically display frequency responses for a variable

displays the frequency or relative frequency of responses of a categorical/qualitative variable

the relative frequency of the interval + the cumulative relative frequency of the previous interval

allow us to look at the interaction or relationship between 2 quantitative variables

as the value of one variable increases, the value of the other variable decreases

as the value of one variable increases, the value of the other variable also increases, or vice versa