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Archived Discussion => Mathematics Exams => Math-Science-Tech Exams => VCE Exam Discussion 2016 => Exam Discussion => Victoria => Further Maths Exam Discussion => Topic started by: sinatra on October 31, 2016, 04:20:35 pm

Title: rounding / sig figs
Post by: sinatra on October 31, 2016, 04:20:35 pm: do the take marks off if you leave decimal places when they ask for it to be rounded to the nearest whole / to -- significant figures??
I didn't have to time review any answers and am worried I have not rounded to what the question asked.

Thanks!
Title: Re: rounding / sig figs
Post by: Pyromaniaa on October 31, 2016, 04:25:48 pm: I'm pretty sure they do!
Title: Re: rounding / sig figs
Post by: blossum on October 31, 2016, 04:26:47 pm: Quote from: sinatra on October 31, 2016, 04:20:35 pm
do the take marks off if you leave decimal places when they ask for it to be rounded to the nearest whole / to -- significant figures??
I didn't have to time review any answers and am worried I have not rounded to what the question asked.

Thanks!
I think they would if they specifically ask you for a figure
I think what you're referring to is this question in core
(http://image.prntscr.com/image/552a835d9ef549548d867d2152e32ea7.png)
You needed to have two sig figs for both values as the question is 3 marks. Probably 2 for correct answers, one for correct sig figs. Or the other way round. Otherwise you can still obtain 2/3 or 1/3 if you didn't :)

Rest of the answers are here @http://imgur.com/a/WWXXE
Title: Re: rounding / sig figs
Post by: zfan52827717 on October 31, 2016, 04:28:42 pm: Quote from: blossum on October 31, 2016, 04:26:47 pm
I think they would if they specifically ask you for a figure
I think what you're referring to is this question in core
(http://image.prntscr.com/image/552a835d9ef549548d867d2152e32ea7.png)
You needed to have two sig figs for both values as the question is 3 marks. Probably 2 for correct answers, one for correct sig figs. Or the other way round. Otherwise you can still obtain 2/3 or 1/3 if you didn't :)

Rest of the answers are here @http://imgur.com/a/WWXXE

i was surprised that this question was 3 marks... i think they definately take marks off if you didnt do significant figures..... :'( :'( :'(
Title: Re: rounding / sig figs
Post by: sinatra on October 31, 2016, 04:31:40 pm: yes that question and I'm worried there was others i didn't notice!

Luckily, I think thats how i wrote that answer, but I'm kicking myself i did;t get time to look back on my answers!
Title: Re: rounding / sig figs
Post by: sinatra on October 31, 2016, 04:34:22 pm: I also left the cents of the last question for finance (lump sum), rather than rounding it to the nearest dollar 😩
Title: Re: rounding / sig figs
Post by: sinatra on November 01, 2016, 05:34:39 pm: thanks drewballs 😅 that's okay
Title: Re: rounding / sig figs
Post by: willrod1 on September 01, 2017, 01:17:39 pm: No longer 1 mark max.

Pages are scanned and sent to examiners at random, so your one exam could be marked by 7 individual examiners - each could take a mark off for rounding issues.

No-one is checking overall how many marks lost to rounding. Could have a significant impact on results.