One Variable vs. Two Variable Data One Variable Data One-variable data sets give measures of ONE ATTRIBUTE. Some Examples……. You can recognize one-variable situations when you see: Tally charts Frequency tables Bar graphs Histograms Pictographs Circle graphs Two Variable Data Two-variable data sets give measures of two attributes for each item in a sample. Some Examples……. You can recognize two-variable situations when you see….. Ordered pairs Scatter plots Two-column tables of values One OR Two Variable Data? Noah researches annual hours of sunshine in Canadian cities A study compared the length of time children spend playing video games and the time they spend reading Fill in the blanks…… As population of a city increases, increases. As population of a city increases, decreases. As temperature increases, increases.