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Baby’s first bar graph

April 11, 2013

Aside from the algebra issue, my kindergartener’s MAP test also made me wonder what he was learning in the area of “Statistics & Probability” (another MAP math sub-score). But here’s a recent homework assignment overseen by his mom — a bona fide histogram of the frequency of red, white, and blue cars parked on the street. Note the expert color coding of the data.

1 car 2 car, red car, blue car

4 comments

  1. Next you need to teach him that bar graphs waste a lot of ink for the amount of information they convey. Maybe get him a good textbook on data visualization. 😉


  2. Actually, that’s NOT a histogram, it’s a bar graph!

    http://en.wikipedia.org/wiki/Histogram
    http://en.wikipedia.org/wiki/Bar_chart

    And not to further pick nits, but a y-axis label would be nice — but maybe they learn that in first grade?? 🙂


  3. I didn’t know what a histogram is (and after reading the wikipedia link I’m not sure I do even now) but thank goodness it isn’t covered in primary school. Or the related ‘kernel density estimation’ either!


  4. An oversight, to be sure! I’ll have to be sure to incorporate the chapter on KDE from “All of Nonparametric Statistics” into Phil’s bedtime reading…



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