some notes.

Author: yy

m08-histogram/class.md

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+# Number of bins in a histogram
+
+- Nick Strayer: [Histograms are fantastic, but make sure your bin-width/number is chosen well. This is the _exact_ same data, plotted with different bin-widths. Notice that the pattern doesn't necessarily get clearer as bin num increases.](https://twitter.com/NicholasStrayer/status/1026893778404225024)
+    - [Interactive version on the web](http://nickstrayer.me/histogram_bins/)
+
+# Histogram vs. Boxplot
+
+What are there strengths and weaknesses? 
+
+As a summarization method, a boxplot may be useful if you want to compare multiple (well-behaving) distributions. Boxplots will immediately and precisely show the median, the quartiles, and the rough range of the distribution. 
+
+On the other hand, a boxplot may hide details in the distribution, particularly when the distribution is far from a normal distribution.