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Ocr mei statistics 1 exam thread (24/05/13)

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Reply 480

sarjan100

Original post by juniorx

no sorry, it was 5.62x10^-3

I deleted that, i got 0.0056, but wrote the wrong one in here, but they would allow 0.0056 instead of 0.00562 right?

Reply 481

tempz

Original post by sarjan100

I deleted that, i got 0.0056, but wrote the wrong one in here, but they would allow 0.0056 instead of 0.00562 right?

Yes you have given it to 4sf which is the recommended accuracy. It is wise to just note down the exact result before though just be sure to get the method marks

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Reply 482

sarjan100

Original post by tempz

Yes you have given it to 4sf which is the recommended accuracy. It is wise to just note down the exact result before though just be sure to get the method marks

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Sweet

(edited 10 years ago)

Reply 483

juniorx

Original post by tempz

Yes you have given it to 4sf which is the recommended accuracy. It is wise to just note down the exact result before though just be sure to get the method marks

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what about standard form. For example you put 5.62x10^-3

Reply 484

Priyanka32

How did everyone find it? :smile:

Reply 485

juniorx

Original post by Priyanka32

How did everyone find it? :smile:

generally it was one of the easier papers, although i know many people quoting it as ****ing easy (but i wouldn't go that far!!)

Reply 486

florencechu

Anyone know if you write out more decimal places in the answer (like 5 dp) you could get marked down? ( saying they haven't told you in the question to round to no. to dp)

Reply 487

Priyanka32

what did you say about whether the outlier should be ignored, for that weight of babies q

Reply 488

tempz

Original post by juniorx

what about standard form. For example you put 5.62x10^-3

Standard form is fine as well, as long as its not to a huge number of sf you should get the mark but they have been harsh since 2011 and been taking away marks for what they call "over specification of answers"

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Reply 489

tempz

Original post by Priyanka32

what did you say about whether the outlier should be ignored, for that weight of babies q

Any answer should get the mark as long as its justified , the common response is usually do not ignore as the baby may be premature and therefore legitimately have a lower weight

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Reply 490

x-Sophie-x

Original post by tempz

Yes you have given it to 4sf which is the recommended accuracy. It is wise to just note down the exact result before though just be sure to get the method marks

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That's not 4sf?!

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Reply 491

Priyanka32

Original post by juniorx

generally it was one of the easier papers, although i know many people quoting it as ****ing easy (but i wouldn't go that far!!)

Haha, grade boundaries gonna be high then!

Reply 492

Priyanka32

Thank god! I wrote the premature reason :bigsmile:

Reply 493

dedicated543

For the box plot question, i got lower quartile 25/4 and upper quartile 3*25/4 but the upper quartile was greater than the max value so i didnt know how to draw the scale

Reply 494

Blobar

I hated the box plot question, cheeky b*****ds didnt even provide graph paper so I was doing my lines all wonky lol.

Reply 495

Mo_maths

Original post by zangorou

I definitely lost 3 on the last Q, maybe 4. So maybe 66/65, hopefully! :biggrin:

You?

I lost 2 on q 2 ii but I think the rest should be fine maybe 70/69 :smile:

Reply 496

alexis a a

I did 4C3x5/12^3x7/12^1 + 4C4x5/12^4x5/12^0

Reply 497

Blobar

Im hoping for 68/69, messed up q2 part 2 but thats it I think.

Reply 498

Tick7

Original post by Mo_maths

for 2 ii) I did (5/12 x 5/12 x 5/12 x 7/12) + ( 5/12 x 5/12 x 5/12 x 5/12) = 0.0723
im pretty confident with that so who has made the error

I hate to break it to you but s/he is right as they've multiplied (5/12 x 5/12 x 5/12 x 7/12) by 4C3 because there a 4C3 ways in which you can order 4 items in which 3 are the same

Reply 499

Tick7

Original post by tempz

Yes you have given it to 4sf which is the recommended accuracy. It is wise to just note down the exact result before though just be sure to get the method marks

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I rounded up to 0.006, will I still get method marks?