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# Edexcel S1 - 15th June, 2016 [Exam Discussion] watch

1. (Original post by LukeB98)
Nope, the mean stayed the same. If you add something that is the mean, it's going to stay the same. Checking on the calculator only confirms the assumption.

The standard deviation does, however change. I believe it decreases as you are reducing the spread of data in this circumstance.
We're dealing with classes mate, so the mean contributes to the 3-3.5 class. Think about it very carefully. The mean decreases slightly.
2. (Original post by bobbutitii)
are you an idiot?
lol
3. Does anyone remember what the top 20% question was out of

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4. (Original post by Kawaii289)
oh sozzy
you better be sozzy
5. (Original post by khaleesi98)
I know what you're saying, but I took it to mean that the 3.43 was factored in exactly as it is, not added to a class in the table. So I'm still going with the mean staying the same.

Either way, it seems a bit ambiguous?
or does it...?
6. (Original post by khaleesi98)
I know what you're saying, but I took it to mean that the 3.43 was factored in exactly as it is, not added to a class in the table. So I'm still going with the mean staying the same.

Either way, it seems a bit ambiguous?
Nope, sorry but the mean did decrease! It's only one or two marks though

They specifically asked for how it changes the ESTIMATE for the mean, no ambiguity
7. (Original post by Dayzh)
does anybody know the marks for each question?
some marks, all marks, a few marks andd every mark
8. Guys how do bees wiggle?
9. Would I still get the marks for rounding to 2 dp? I put the full answer with ... Then rounded
10. (Original post by bobbutitii)
are you an idiot?
The stress from exams , force me to stay awake the whole night , therefore I make stupid mistakes but thats the only thing which i messed up and the winning probabilty thing out of the whole paper
11. (Original post by target21859)
Would I still get the marks for rounding to 2 dp? I put the full answer with ... Then rounded
no you cretin
12. (Original post by Pudge666)
The stress from exams , force me to stay awake the whole night , therefore I make stupid mistakes but thats the only thing which i messed up and the winning probabilty thing out of the whole paper
k. Don't need your life story.
13. Will there be model solutions for this paper?
14. (Original post by bobbutitii)
k. Don't need your life story.
Lol sorry boss man dont end my life with that "k" reply
15. (Original post by Pudge666)
Lol sorry boss man dont end my life with that "k" reply
you know g x
16. I've just asked my maths department and the mean stays the same

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17. (Original post by neyjunior)
Will there be model solutions for this paper?
there might be immodel solutions
18. (Original post by iMacJack)
I've just asked my maths department and the mean stays the same

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cool story bro, needs more dragons and shizz
19. will there be model answers (unofficial mark scheme) similar to the guy that draws animal faces (e.g. bears) - can't remember his name exactly
20. (Original post by bobbutitii)
Sure, you use the brain i hope you have
After todays exam i doubt i cn say i have one

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