How was Statistics paper 63?

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i wanna cry. made sillllly mistakes! for the qs 4, i was confident in doing 4(i) then 4(ii) i panicked after my histogram has gap.. not much time left to correct it.. at home i just realized that my classboundaries, ucb and lcb were wrong! :( so meaning my 4(i) also wrong!
i believed my way of answering, the steps were correct but just the ucb/lcb, so am i getting any marks?
I didnt get the chance to do qs 6.. and qs 5, im not sure if what i did is right, the working was simple and worth 5 marks? and longer working worth 4 marks/ 3 marks? Hmmm..

but overall i think it wasnt supposed to be that difficult, most of my friends said it was just okay..
 
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