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OCR Statistics May 2011 Questions

Hey guys, sat this exam a while back and just have some queries, can anyone tell me how much I would get for each question? Thanks a lot, have attached the paper :smile:

4) (ii) More than 33, because the median lies in the class 31=< t =< 35, and as the data is positively skewed, the median must be greater than 33, and went on about this in more detail. (Did not do any calculations, just reasoned it out)

6)(i)(b) 6! x 2 = 1440
(ii)(a) 4! x 3! = 144
(b) 5! x 3! = 720

- Note: Did not read the question properly and worked out all the possible combinations (they are all right), just forgot to divide it by 5040 as I didn't realise it said probability.

8)(iv) Geo ~ (1/6)
(5/6)^9 x 1/6 = 0.0323

- Note: This is the wrong answer, was just wondering how much I would get for it?

So how many marks should I gain/lose for these questions? Any help would greatly be appreciated, thanks! :smile:
s1_2011_june_paper (1).pdf468.7KB

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