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actually my probabilities might have been right, if you draw a tree diagram? i got p(6,6) = 1/36 p(?, 6) = 11/36 p(no 6) = 25/36

hmmm yep i think your right! there goes another couple of marks... g i don't understand how i could screw up so badly!

92???? that is so good... i thought maybe everyone screwed up but i guess not! can you make a thread with your answers so we can see where we went wrong?

i'm really upset i don't think it was a hard test they just worded stuff really bad and i made stupid mistakes! its not fair my mark is gonna be so gay when i understood so much more stuff!

more depressed i just found another question wrong > 85.5! and that will scale down to like 70! thank god for 12 units!

(b) (i) 25/26 ? (ii) lose 20 cents did u get this?

from what i worked out i got 87.5! :< i'm so depressed i was aiming for 100!

(iii) i got t = - [N - a )/ b] (iv) 25 minutes otherwise same

no for the last one we had to find everything above 1 standard deviation so wouldn't it be 16%?

i put a) but im not sure

well i can confidently say i fucked up maths and english

(a) (i) (1) 2 (2) the most common number of cars possessed by each household (ii) (1 x 12 305) + (2 x 13 918) + (3 x 3980) + (4 x 233) = 53 013 (iii) 2 735 / 33 171 = 0.082451538 0.082451538 x 360 = 30 degrees (rounded nearest degree) (iv) $10 (b) (i) more primary school...

oh damn! thank you! does anyone have working for 9?

what did u get? question 23 (a) (i) 1.2 x 13 = 15.6 (ii) 15.6 x 7 = 109.2 (one week), 109.2 L = 0.1092, 0.109.2 x 94.22 = 10.29 cents (iii) 1.2 x 1000 = 1200 1200 x 15 = 18 000 (iv) 10 hours = 600 minutes, 18 000 / 600 = 30 drops per minute (b) 3181 (c) 50 (d) (i)...

does anyone have working for 9? my working for 20 is: (1.29+7.23+4.13) x .10 =1.265? rounded to $1.27 which is b) how come no one else got b?

i didn't think it was hard, i got tricked by a few questions but they weren't really hard just dumb mistakes

i got 29.2.....% aswell

yep i got all the same

ok i got 9-a, 13-c, 20-b, 21-b, 22-b?????? which is different to what some of you guys got, can i see some working to those?

awwww i so stuffed up that question! -5 marks!