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<a https://www.thestudentroom.co.uk/showthread.php?t=7467335'> Year 12s: what will be the first way you research your future options? >>
<a https://www.thestudentroom.co.uk/showthread.php?t=7467335'> Year 12s: what will be the first way you research your future options? >>

AS AQA Mathematics Statistics 1B MS1B June 2014

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For question 3.b) i swear you x3 because unlike the previous exam question like it where you x6 there were 3 completely different events whereas this time 2 of the events were the same so only 2 different events, so there were only 3 combinations rather than 6 combinations like before?
I think I got around 60-62 marks, is that probably a B?
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joecul
Original post by Rebecca0184
I think I got around 60-62 marks, is that probably a B?

An A probably, boundaries are usually quite low for stats, like 54-58
guys does anyone know what that finding R uv question was all about and what the answer was? i got 1 but i know i messed up, just don't get what it was
Original post by paveen_rai
guys does anyone know what that finding R uv question was all about and what the answer was? i got 1 but i know i messed up, just don't get what it was


It was the same value as r that you got in the first part of the question

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Original post by winniestar57
It was the same value as r that you got in the first part of the question

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how were u supposed to work the first bit out? i used the sxy/root (sxx*syy) formula to get the pmcc but i got 1 as the answer and that can't be right can it :/
Original post by paveen_rai
how were u supposed to work the first bit out? i used the sxy/root (sxx*syy) formula to get the pmcc but i got 1 as the answer and that can't be right can it :/


stick the u and v values given in the table into the calculator.
Original post by paveen_rai
how were u supposed to work the first bit out? i used the sxy/root (sxx*syy) formula to get the pmcc but i got 1 as the answer and that can't be right can it :/


I used the values from the table and worked it out on the stats mode of the calculator

Posted from TSR Mobile
Original post by paveen_rai
how were u supposed to work the first bit out? i used the sxy/root (sxx*syy) formula to get the pmcc but i got 1 as the answer and that can't be right can it :/


i just whipped it into my fat graphical and it gave me the answer straight away

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