| Term | Definition |
| circumference | the primeter of a circle |
| fixed varible | when collecting data, the varible that is controlled and does NOT change |
| manipulated varible | the varibles with known values at the beginning of the experement, the changed varible that is controlled throughout the expearement |
| responding varible | there are results of of an expearement- the values of the outcomes |
| best fit line | a line that comes as close to fitting the data points as possible |
| average | A measure of centrel tendency; used to represent all the numbers in a group (mean meidan and mode). |
| mean | the number found by dividing the sum of a set of numbers bythe number of addens |
| median | the middle measurment of a group numbers that are orderd from least to greatest |