Edexcel A-level Mathematics : Statistics S2 6684 01 - 24 Jun 2019 [Exam Discussion] Watch

GingerAnnie
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Here is the exam discussion for this exam. Talk anything from how to revise for it, specific questions or time management
Date: 24th June
AM/PM:AM
Length:1h30
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orangestapler
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S1 exams the past couple years have been likened to the IAL exams, is this the same for S2?
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kparmar1999
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lads you ready for tommoro, i aint i just hope its a decent paper
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ElbertAinstein
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Doin all those solomon papers then im off to bed
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orangestapler
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(Original post by kparmar1999)
lads you ready for tommoro, i aint i just hope its a decent paper
No questions with unnecessary algebra in pls
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kparmar1999
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Trust me
(Original post by orangestapler)
No questions with unnecessary algebra in pls
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orangestapler
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What do we think then boyssssss, thought it was decent
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24523452451234
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K last question -0.5?
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24523452451234
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Anyone remember any answers?
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Wangyuchen2000
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How did u guys prove the last Q?
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Jamachree
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What did you guys get for the skewness
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Evil Homer
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How did it go today guys?
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kparmar1999
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I couldn't do the 5marker on uniform distribution
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OCRScience
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(Original post by Jamachree)
What did you guys get for the skewness
Standard deviance was 0.8 so negative skewness
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Wangyuchen2000
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0.8 exactly?
(Original post by OCRScience)
Standard deviance was 0.8 so negative skewness
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orangestapler
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(Original post by Wangyuchen2000)
How did u guys prove the last Q?
Found E(X) in terms of K and B then found K using -3<X<3 and subbed it in, got K=1/2
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24523452451234
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Was b = 3 or b=-3 in the question?
(Original post by orangestapler)
Found E(X) in terms of K and B then found K using -3<X<3 and subbed it in, got K=1/2
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orangestapler
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3 I thought?
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orangestapler
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Anyone else get 185/216 for P(2<X<5)? And 5/8 for the probability of part c of the continuous uniform distribution??? About the fence
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Nigel1322
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i got k as 3/2b
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