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Edexcel AS Level Maths - Statistics (S1) Exam - 15th June 2016

I thought it would be a good idea to have a thread for the S1 exam for Edexcel maths where we can contribute resources, revision tips and ask for help

Thanks!

Here are some good resources to start this thread off!

Revision notes:
https://0cc6f1255ee36c27d4aeb00893d3236ef9aaeedd.googledrive.com/host/0B1ZiqBksUHNYY3NlUXJmM09NQ2s/Edexcel%20S1%20Revision%20Sheets.pdf

https://0cc6f1255ee36c27d4aeb00893d3236ef9aaeedd.googledrive.com/host/0B1ZiqBksUHNYY3NlUXJmM09NQ2s/Edexcel%20S1%20Notes.pdf

http://www.mrbartonmaths.com/resources/a%20level%20revision/S1.pdf

http://www.mathsbox.org.uk/revisionnotes/AQA%20Statistics%201%20Revision%20Notes.pdf


Useful websites:
http://www.mrbartonmaths.com/alevel.htm

https://hegartymaths.com/ (you have to sign up, but it's completely free!)

http://www.examsolutions.net/maths-revision/syllabuses/Edexcel/period-1/specification.php
There's already an S1 thread
http://www.thestudentroom.co.uk/showthread.php?t=3932531&highlight=s1#primary_content
^^^^ rah


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Reply 3
Avatar for pranto96
pranto96
1
In June 2015 1(d) I am getting Q1 as 62! I don't know whats wrong! how do you get 9/15? My working is : 60+(21-15/21-6)*5. How it is possible to get 9 if u subtract 21-15??
Original post by pranto96
In June 2015 1(d) I am getting Q1 as 62! I don't know whats wrong! how do you get 9/15? My working is : 60+(21-15/21-6)*5. How it is possible to get 9 if u subtract 21-15??


You use linear interpolation.
So you do (15-6/21-6)*5 + 60 = 63
You just got the numbers on the top of the fraction mixed up
Reply 5
Avatar for Jozanic
Jozanic
13
Anyone have any ideas on like the hardest question you could get. I dislike stats due to there being so many words. So yeah if you have any ideas please tell me. Thanks
How did everyone find it? Not too bad this being my 3rd attempt haha

1b)Wiggles c)0.994 d)w=0.722+0.0142d e)5.69
2a)0.5=2p +q b)0.15 c)0.175 d)0.45 f) 0.445 and 0.485
3a)2.348 b *didn't get this one* c)-133.9 d)-0.754
4a) 0 b)t=0.03 u=0.22 9/11(0.818) 15/12(0.682) estimate=35
5a)w=2/3 h=12.75 b) 3.47 c) 3.43,0.680 d) 0.2546
6a)0.0668 b)206(.something) minutes c)0.36

I don't expect all of my answers to be correct so please take them with a pinch of salt, appreciate any corrections and explanations
Original post by chewitt77
How did everyone find it? Not too bad this being my 3rd attempt haha

1b)Wiggles c)0.994 d)w=0.722+0.0142d e)5.69
2a)0.5=2p +q b)0.15 c)0.175 d)0.45 f) 0.445 and 0.485
3a)2.348 b *didn't get this one* c)-133.9 d)-0.754
4a) 0 b)t=0.03 u=0.22 9/11(0.818) 15/12(0.682) estimate=35
5a)w=2/3 h=12.75 b) 3.47 c) 3.43,0.680 d) 0.2546
6a)0.0668 b)206(.something) minutes c)0.36

I don't expect all of my answers to be correct so please take them with a pinch of salt, appreciate any corrections and explanations


2f the probabilities were 0.475 and 0.375 respectively
my estimate for the number of people was 32.
the height was 17cm and the width was 0.5cm
Reply 8
Avatar for TighFR
TighFR
Original post by alexesl17
2f the probabilities were 0.475 and 0.375 respectively
my estimate for the number of people was 32.
the height was 17cm and the width was 0.5cm


I also got 2f) 0.445 and 0.485 so you may of messed up their bro.
Original post by TighFR
I also got 2f) 0.445 and 0.485 so you may of messed up their bro.


nah i dont mess up :wink:
Reply 10
Avatar for TighFR
TighFR
Original post by alexesl17
nah i dont mess up :wink:


Loooool, we'll see.
Original post by TighFR
Loooool, we'll see.


walk me through then how you got those answers
If you look at the last few years grade boundaries, it is between 59-61 for an A
Reply 13
Avatar for TighFR
TighFR
Original post by alexesl17
walk me through then how you got those answers


I created a probability distribution for Rebecca where I replaced the x values ie 2 for 1/2 as it was R=1/X.Then you just work out all the possible outcomes (you can use a tree diagram but to me that long). The summation of all the possible outcomes was for me 0.445.
Any unofficial markschemes out there yet?
Original post by TighFR
I created a probability distribution for Rebecca where I replaced the x values ie 2 for 1/2 as it was R=1/X.Then you just work out all the possible outcomes (you can use a tree diagram but to me that long). The summation of all the possible outcomes was for me 0.445.


yea i got a couple of friends that did that method but the thing is that both girls use the same outcome from the spinner i.e its not one spin for sarah and one spin for rebecca, so the only way sarah can win is if the spinner lands on 3/2 or 2 (because rebecas values of 1/3/2 and 1/2 would be smaller) and the probability that it lands on 3/2 is 0.3 as given in the table and that it lands on 2 is p which is 0.175, hence 0.3+0.175 = 0.475. hope u understand my explanation:smile:
Reply 16
Avatar for TighFR
TighFR
Original post by TighFR
I created a probability distribution for Rebecca where I replaced the x values ie 2 for 1/2 as it was R=1/X.Then you just work out all the possible outcomes (you can use a tree diagram but to me that long). The summation of all the possible outcomes was for me 0.445.


To be fair, you are probably right as I originally left this question not knowing how to do it. What did you do?
Original post by TighFR
To be fair, you are probably right as I originally left this question not knowing how to do it. What did you do?

same i just didnt understand it!:frown:
I think ive done okay on the others except the venn Diagram. Edexcel are horrible i hated that question.
Original post by alexesl17
nah i dont mess up :wink:


Original post by TighFR
Loooool, we'll see.


Most people I know said it was 0.475 and 0.375.
Also why aren't you guys on the S1 thread
http://www.thestudentroom.co.uk/showthread.php?t=3932531

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