You are Here: Home >< Maths

# OCR MEI D1 15th June & M1 17th June 2016

Announcements Posted on
Why bother with a post grad? Are they even worth it? Have your say! 26-10-2016
1. Here's a graph showing the grade boundaries over the previous years. I don't know if 2016 can be estimated from it using the difficulty from those years.
2. (Original post by KR1701)
I have just come out of that exam; it couldn't have gone worse. I did not finish, and was unable to answer most questions with confidence. I hope I am not the only one that feels that way.
Same here

Posted from TSR Mobile
3. for the critical path, was B a predecessor of A as B was pick the rest of actors, and A was pick the main actors, so did they try to trick us out? because that wasn't in the text nor did it say you had to prepare the scenery before actually installing it?? and what were peoples inequalities for the LP q.....
4. Can anyone remember what they got for the constraints how did you find the other constraints
x is greater than or equal to 20
y is greater than or equal to 24
they gave us x+y+z=20
i think the first constraint from part i, i got total Area wasted = 0.08x + 0.21y + 0.04z
5. (Original post by thebearissquare)
Can anyone remember what they got for the constraints how did you find the other constraints
x is greater than or equal to 20
y is greater than or equal to 24
they gave us x+y+z=20
i think the first constraint from part i, i got total Area wasted = 0.08x + 0.21y + 0.04z
I got that too mate but then another was x + y is greater and equal to 44.
6. Does anybody remember how many marks the linear programming question was out of? Absolute joke and dropped every single mark!
7. (Original post by bethygirl)
Does anybody remember how many marks the linear programming question was out of? Absolute joke and dropped every single mark!
16 all together, 7 for the last part with the graph, 3 marks for the bit before that, formulating the lp
8. For the linear programming one, I tried to say x=2A (defined A as product 1), Y=A+B (Defined B as product 2), then Z= 2B, (rather than 3B fmllll).
I then substituted in for my constraints
1)X+Y>=20
2)Z+Y>=24
3)Y+X+Z=20
to get:
3A+B>=20
A+3B>= 24
3A+3B=20
Then plotted it.
Would I get any method marks for this at all?
Or would I even have got it right if I had substituted in z=3B rather than z=2b?
9. That paper was ridiculous, I don't see why the exam board should make a question which Is near impossible to answer, it's ridiculous, there goes my A , possibly b , possible c
10. (Original post by ineedA)
That paper was ridiculous, I don't see why the exam board should make a question which Is near impossible to answer, it's ridiculous, there goes my A , possibly b , possible c
I know its not much consolation, but you arent the only one
11. For the simulation question, how would you interpret the results? It worth like 3 marks.
12. (Original post by JordanL_)
I know its not much consolation, but you arent the only one
Literally everyone who did th exam in my school couldn't do the LP and the question after that, that's about 18 marks
13. And is n=7 when the p<0.5?
14. (Original post by lilrabbits)
And is n=7 when the p<0.5?
N is less than7
15. (Original post by ineedA)
Literally everyone who did th exam in my school couldn't do the LP and the question after that, that's about 18 marks
Yep, I did parts of the LP question but the activity network after it I just couldnt do.

(Original post by lilrabbits)
And is n=7 when the p<0.5?
I think thats what I got.

(Original post by lilrabbits)
For the simulation question, how would you interpret the results? It worth like 3 marks.
I think I said they made a net loss or something like that and then gave the mean which was like -1100/5 or something. Then said its not a good strategy.
16. (Original post by lilrabbits)
For the simulation question, how would you interpret the results? It worth like 3 marks.
I said he had a 0.6 chance of winning within 3 attempts at nicholas' technique.
Not 3 marks worthy at all, but I heard some people talking about the average winnings to losses, and apparently if you tally up all his loses and add on his wins, (in £), he will average a loss, fml should have said that.
17. Worst exam yet apart from fp1. Ran out of time so i couldnt do prims, and I think i messed up the linear programming.

Posted from TSR Mobile
18. (Original post by ineedA)
N is less than7
How did you get that? Thanks!
19. (Original post by lilrabbits)
And is n=7 when the p<0.5?
yea that's what I got

(Original post by lilrabbits)
For the simulation question, how would you interpret the results? It worth like 3 marks.
I calculate the mean and it was a loss so I said his strategy didn't work not sure what else you could say

(Original post by JordanL_)
I think I said they made a net loss or something like that and then gave the mean which was like -1100/5 or something. Then said its not a good strategy.
same

the exam overall was incredibly peak tbh
20. I thought this paper was much harder than the 2014 paper which had extremely low grade boundaries so hopefully they will be similar

Posted from TSR Mobile

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: June 17, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

### Who is getting a uni offer this half term?

Find out which unis are hot off the mark here

Poll
Useful resources