Counting cars 1

We started out by watching this video of cars moving past IST:

Then we counted the different colours of cars.

It was quite difficult sometimes to decide whether a car was white or silver, or blue or black. So we didn't all get exactly the same counts. We took the median frequency in each case, that is the middle one.

We used Education City to help us present the data:

a bar chart

We thought up some questions that could be asked about the data. Here they are:

And here's the data presented in some other ways:

a block chart

a pie chart

This last, the pie chart, also gave us the percentages of cars passing by.

Tomorrow we go out to do it live in the open air...