independent or manipulated variable-
changed on purpose usually at regular intervals; usually found in the first column (or first row) of a data table; placed on the x-axis of a graph
dependent or responding variable-
affected by the independent variable; placed on the y-axis of a graph
obtained by measuring or counting
describes, but not obtained by measuring or counting
AKA circle graph; shows how a whole is divided into parts (percentages)
used when one factor is qualitative and the other is quantitative
used when both variables are quantitative; the most common type of scientific graph
difference between the highest value and the lowest value in a data set
the numeric value for each interval (square) on an axis
series of cells going up and down in a data table
series of cells going across in a data table
going up and down
going across (left to right); parallel to the horizon
horizontal axis; used for the independent variable
vertical axis; used for the dependent variable
used to display the data; 3 types - pie, bar, and line
used to collect (store) data; made up of rows and columns
method for calculating scale-
1. divide range by squares 2. if necessary, bump up to the next HIGHER number that is easy to work with
describes the relationship between two variables; can be positive or negative
follows the format "Effect of Independent Variable on Dependent Variable"; data table and corresponding graph should always match
indicates name of variable; includes units in parentheses
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