Post by: vidang on November 05, 2010, 06:20:18 pm
for using z-score formula
z = 7-5/3
= 2/3 or no?
and q9b-
would i get 1 mark for
setting up and integral
limits between 1 to 3 f'(x) dx?
Post by: andy456 on November 05, 2010, 06:25:09 pm
q5b- would i get 1 markq5b id hope so because there isnt anything else you can do unless they wanted you to draw the graph
for using z-score formula
z = 7-5/3
= 2/3 or no?
and q9b-
would i get 1 mark for
setting up and integral
limits between 1 to 3 f'(x) dx?
q9b i think if you had this:
but you can never tell
Post by: x Shane x on November 05, 2010, 06:46:06 pm
For 5b, you'll definitely get at least 1 mark for Z>2/3...I thought you changed it to Z<-2/3 ? (if you did and said that b=-2/3, you'd get full marks :))
For 9b, I'm not quite sure...they might give you the mark, as VCAA examiners have been told to 'look' for marks - it might just cut it! :)