Solve Statistics Exercise: 1500 in Biology vs Physics Pie Chart

[sp3]

Hello, I'm not familiar with basic statistics exercises using pie chart and I'd like to know how i can solve this one: in a faculty science of 3000 students, some are in biology, some in physics and some in chemistry as shown on the pie chart. I can for sure tell that 1500 students are in biology. The question asked is how many more students are there in biology compared to physics? I don't know how to tackle this.

Thanks for your help in advance!

 

[skeeter]

Best you can do with the pie chart given is an estimate.

See what you can do to improve that estimate if a measuring device is used ...

 

[sp3]

There's no device used so I thought some statistical calculations were involved... Thanks for the quick response!

 

[topsquark]

The question asked is how many more students are there in biology compared to physics?

Since they didn't give you an actual scale to say with any precision, my answer would be "a lot." (Angel)

-Dan