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Do stem and leaf plots show frequency?
Yes, in the sense that each leaf represents a frequency of one.
Do stem-and-leaf plots show frequency?
Yes, a stem-and-leaf plot shows the frequency distribution of a variable.
What does a stem-and-leaf plot show?
It shows how data changes over time
What is the difference between a histogram and a line plot?
Line plots are used to figure out how much of one value is in a set of data. Histograms are used to show/compare data in what seems like a bar graph, but instead it used to compare data over a period of time, number of a value, ect. ( intervals)
What are box and whisker plots used in?
Also called the box plots, see: http://mathworld.wolfram.com/Box-and-WhiskerPlot.html Many other excellent references can be found on the internet. The intent is to visually show graphically the mean (or median) of the data and the variability of data in terms of first quartile (Q1) and third quartile (Q3). Typically, it is applicable when there is sufficient and related data for a particular interval of time and the variability (range) of this data is of interest. The focus in generally is a time trend in the data. Changes in stock market prices or other economic/ financial analyses can use box plots. An example can be the selling price of automobiles per month because perhaps the median price is going down, but the high priced cars (Q3) is going up.
