two variables two sets of data Scatterplots: a way to organize data in _____ ______________. Points plotted on a graph can show a possible relationship between ______________________________________. These three scatterplots show the types of relationships two sets of data may have. NOTE: The words “correlation” and “association” are both used. Just because there may be a correlation between the two sets of data does NOT mean there is “causation.” One may NOT affect (or cause) the other. Data values ___________ One set of data values ____________ or _________ together. while the other _____________. Sometimes they may ask you how strong an association or correlation is. two variables two sets of data Sometimes data looks somewhat ____________, like you could draw a line through the center of the data. Sometimes data is ____ _________. linear not linear increase increases decrease decreases