STATS 7 Lecture Notes - Lecture 3: Pie Chart, Standard Deviation, Histogram
Document Summary
In the bar graph about online harassment on slide 5, the data cannot be simply put into a pie chart for each gender, because pie charts only measure 1 variable. If all you want it to see the pattern, a summarized graph is fine. In the dot graph b, the outline of the bar is xbar hsam (mean of the dots: histogram graph on races: The time plot it more effective in reading this data because its organized differently. When the year is on the x axis, you see that there was a spike in the 1990s, and its because the tracks were changed in length later on (resulting in lower times later). Slide 8: median laughter group size for the first graph is not 4 because you need to take into account all the points belonging to each category.
