Year 12s: what will be the first way you research your future options? >>

Edexcel GCSE Statistics H June 2013 Solutions

Some past solutions and my excellent revision guide

https://www.dropbox.com/s/1x119m45dnq5uua/j10sola.pdf
https://www.dropbox.com/s/c4uali4i37abgop/j10solb.pdf
https://www.dropbox.com/s/1rjtvle9r7jw7zw/j11sola.pdf
https://www.dropbox.com/s/6ucverzum9sl4yx/j11solb.pdf
https://www.dropbox.com/s/yltipsw3oyq2qfr/j12sol.pdf
https://www.dropbox.com/s/0sxn6x2momm1ezf/REVISION%20GUIDE%202013.pdf

Solutions now uploaded...

(edited 10 years ago)

j13sola.pdf507.6KB

j13solb.pdf570.9KB

Scroll to see replies

Thanks!

Great thanks!!!! I think on 1b there's an error: it should be 24/120 not out of 100. But other than that it's great! For the how does adding £10 affect the mean I said it increases the mean as opposed to increases it by 10. Do u think that's acceptable?

Posted from TSR Mobile

Reply 3

User1206819

Original post by donkhan

Can you check your Q8 a please?

Mr M is correct

Posted from TSR Mobile

Reply 4

L'Evil Fish

11)c)

Is definitely wrong.

I got it to be -1. Which is perfect negative correlation.

Realistically the gradient should range from -1 to 1.

Reply 5

User1206819

Original post by L'Evil Fish

11)c)

Is definitely wrong.

I got it to be -1. Which is perfect negative correlation.

Realistically the gradient should range from -1 to 1.

It depends. If u count squares and u end up with -54/52 it is what it is.... If he counted squares wrong it wud be a different story but he didn't.

Posted from TSR Mobile

Reply 6

L'Evil Fish

Original post by Kkg1

It depends. If u count squares and u end up with -54/52 it is what it is.... If he counted squares wrong it wud be a different story but he didn't.

Posted from TSR Mobile

But it was 2 blocks to the right for every block down, which on the scale was -1.

Reply 7

User1206819

Original post by L'Evil Fish

But it was 2 blocks to the right for every block down, which on the scale was -1.

Look at it again...... very closely

Posted from TSR Mobile

Reply 8

snikutsmullac

Is it alright if you simplify the fractions you got for the probabilities, cause thats what I did... e.g. 50/100 cancels down to 1/2?

Reply 9

eddie1221

Original post by L'Evil Fish

But it was 2 blocks to the right for every block down, which on the scale was -1.

It wasn't exactly.. I got -1.04 aswell.

Reply 10

L'Evil Fish

Original post by Kkg1

Look at it again...... very closely

Posted from TSR Mobile

No..

Reply 11

User1206819

Original post by L'Evil Fish

No..

The truth hurts sometimes I know

Posted from TSR Mobile

Reply 12

L'Evil Fish

Original post by Kkg1

The truth hurts sometimes I know

Posted from TSR Mobile

Omg, haha, we'll see on results day

Reply 13

User1206819

Original post by L'Evil Fish

Omg, haha, we'll see on results day

No we won't... Official mark schemes won't be available to us until next may...

Posted from TSR Mobile

Reply 14

L'Evil Fish

Original post by Kkg1

No we won't... Official mark schemes won't be available to us until next may...

Posted from TSR Mobile

I don't care about that question in particular... Plus Mark schemes are released to teachers in July.

Reply 15

User1206819

(edited 10 years ago)

Reply 16

mrmanps

Original post by L'Evil Fish

I don't care about that question in particular... Plus Mark schemes are released to teachers in July.

If there is a Q you want to query let me know, I may be able to say if you will get it right. The gradient Q I have said in the MS the allowable range

Reply 17

L'Evil Fish

Original post by mrmanps

If there is a Q you want to query let me know, I may be able to say if you will get it right. The gradient Q I have said in the MS the allowable range

Urmmm... I can't think of other bigger ones, about 95% of our answers are the same so :smile:

Reply 18

Connorbwfc

For 12b, how many marks will this be 'there is very weak positive correlation and as one judges mark increases the other one does slightly and vice versa'?

Also for the one about Netto do you think 1890 will definitely get the mark?