Confidence intervals are confusing. I tried putting together a visualization that explains a valid interpretation of them.

Fun probability problems involving biased coins...

Sometimes when using plotly, you'll plot something, it won't show up, and hovering over the point that didn't show up will work. What's going on?

Plotly slows down with a lot of traces. I found a workaround to speed it up in certain situations.

Simple question...do stocks do better the day after stocks go up or the day after stocks go down?