Reading bar graphs: Harry Potter (Full video)

Description: Sal interprets a bar graph. Created by Sal Khan. At Hogwarts, there are four houses: Gryffindor, Hufflepuff, Ravenclaw, and Slytherin. The bar chart below shows the number of house points that each house received today. And so, if we look at Hufflepuff's bar, it looks like they have 3 points scored today.

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