Maths HL 1996 P2 Q7 c ii

Tomlowe

It's mad, ive spent about 2 hours of my life trying to come up with an answer to this one, can anyone help me?

Sean^DCT4

what is the question ?

eZe^

Did it a couple of weeks ago, decided to scan it instead of typing. Apologies for doing the 2nd part first and the bad handwriting!

http://img211.imageshack.us/img211/3414/picture001ot1.jpg

Tomlowe

very good... thank you

Tomlowe

one thing i will point out though, your sigmas are deltas....

http://en.wikipedia.org/wiki/Delta_%28letter%29

http://en.wikipedia.org/wiki/Sigma

and although it doesnt matter for leaving cert purposes, the deviation from the mean is the variable minus the mean, not vice versa

eZe^

Tomlowe wrote:

one thing i will point out though, your sigmas are deltas....

http://en.wikipedia.org/wiki/Delta_%28letter%29

http://en.wikipedia.org/wiki/Sigma

and although it doesnt matter for leaving cert purposes, the deviation from the mean is the variable minus the mean, not vice versa

Thats my teachers fault!