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Has anyone done Chem 23 and stats 63?

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So how'd you guys find it? Chem was really easy and I lost one mark but stats...omg that airplane question was sooooo tricky... Did anyone get it?
 

csc

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I didn't get the airplane question,

how do you draw C2O? and what's the shape?
 
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yeah chemistry i finished it in 40 minutes and 35mins spare.. as for maths.. the perms and combs was crazyy
 
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Shape for c2o was linear I believe, and far out I don't know anyone in my school who is certain about their answers for the permutation question in stats lol
 
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