[Official Thread] OCR MEI AS Mathematics 2016 (C1, C2 & S1)

Reply 320

♥Samantha♥

19

Original post by tizzaclaire98

Definitley!
I'm doing S1 next year along with C4 (This year I'm doing C1,2,3 and M1)

My school is forcing us to do up to M3 next year.... I'm going to cry :burnout:

Reply 321

erinls2

15

Original post by ellabailey2701

For cumulative frequency graphs and histograms do we need to work out upper and lower class boundaries? I've not been taught to do this but its in my revision guide.

For cumulative frequency, you always plot the upper bound of the data groups - I assume they'll give a range of grouped data so plot the upper one. For histograms you just plot the data normally I think, so if you had an X axis of 0 to 100 you'd just plot the data over the correct range - say 10 to 30, 30 - 40 etc....does that make sense?

Reply 322

ellabailey2701

Original post by erinls2

For cumulative frequency, you always plot the upper bound of the data groups - I assume they'll give a range of grouped data so plot the upper one. For histograms you just plot the data normally I think, so if you had an X axis of 0 to 100 you'd just plot the data over the correct range - say 10 to 30, 30 - 40 etc....does that make sense?

Yeah, thanks. I thought I'd never done boundaries with histograms haha :tongue:

Reply 323

IXxi HIIDA ixXI

15

Can someone tell me what it means by "Condone full answer of 1499.3..."
I worked out the answer on a calculator and the full answer, as shown on the calculator is 1499.3, would I lose a mark for writing the full answer?

Reply 324

ABeingOnEarth

OP

15

Original post by IXxi HIIDA ixXI

Can someone tell me what it means by "Condone full answer of 1499.3..."
I worked out the answer on a calculator and the full answer, as shown on the calculator is 1499.3, would I lose a mark for writing the full answer?

Condone means accept, so yeah you'll get the mark!

Reply 325

Jowen12

2

Good luck to everyone for tomorrow! How is everyone feeling about it? What topics do you reckon will show up?

Personally, I'm not a fan of statistics as a whole, terrible at probability questions, fingers crossed for no two-tail testing either!

Reply 326

itvvnews

i need help with linear interpolation how do you do it ? never taught in class and i think it may come up

Reply 327

harryleavey

16

Original post by itvvnews

i need help with linear interpolation how do you do it ? never taught in class and i think it may come up

https://youtu.be/3Na9wqhnEcY

Reply 328

ShadowHz

3

Original post by itvvnews

i need help with linear interpolation how do you do it ? never taught in class and i think it may come up

Check this out:
https://www.youtube.com/watch?v=3Na9wqhnEcY
Although he is using Edexcel material, the methods are still the same. :smile:

Linear Interpolation is just using to find grouped data's median. Sometimes they didn't specify it, but when you see they ask you for a median from a grouped data, just used linear interpolation.

p.s. sorry my English is a little rubbish

Reply 329

harryleavey

16

I thought this might be helpful for those sitting the S1 exam tomorrow
http://hleavey.site/ZfjRcU

Reply 330

ShadowHz

3

Original post by ABeingOnEarth

I also want to know this! ?

Hey, I asked my teacher today. She said for Binomial, you round your values to 4 decimal places. And for others, you round it to 3sf, unless that there are specific values like when they are asking for how much money, you put in 2dp. Hope this make sense

Reply 331

itvvnews

Original post by ShadowHz

Check this out:
https://www.youtube.com/watch?v=3Na9wqhnEcY
Although he is using Edexcel material, the methods are still the same. :smile:

Linear Interpolation is just using to find grouped data's median. Sometimes they didn't specify it, but when you see they ask you for a median from a grouped data, just used linear interpolation.

p.s. sorry my English is a little rubbish

thank you so much

Reply 332

♥Samantha♥

19

Original post by Crozzer24

Just wondering on the whole do people find s1 extremely easy compared to the other applied modules? I'm surprised how low the boundaries have been for an A on s1 recently

I find it easier than M1, but harder than S2.

Reply 333

Delma

5

Hey you know how nPr = nCr x r!, for example 9P3 = 504 and 9C3 x 3! = 504, do you think we get penalised if we don't use whichever one is specified in their mark scheme?

Posted from TSR Mobile

Reply 334

ShadowHz

3

Original post by Delma

Hey you know how nPr = nCr x r!, for example 9P3 = 504 and 9C3 x 3! = 504, do you think we get penalised if we don't use whichever one is specified in their mark scheme?

Posted from TSR Mobile

I think they have both methods included in the mark scheme (if i do remember)

Reply 335

ilikecheese666

1

Hi, I was never taught linear interpolation, are we supposed to have learnt it? Is it likely to come up in the exam?

Reply 336

ShadowHz

3

Original post by ilikecheese666

Hi, I was never taught linear interpolation, are we supposed to have learnt it? Is it likely to come up in the exam?

Yes, I would say, the chances of coming up is around 60% i think. Check out the reply I did 30 min ago (it's on the same page) It teaches you how to do it.

Reply 337

ilikecheese666

1

Original post by ShadowHz

Yes, I would say, the chances of coming up is around 60% i think. Check out the reply I did 30 min ago (it's on the same page) It teaches you how to do it.