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    (Original post by Abbyy1234)
    For the comparison I said on average Sarah had longer waiting times but jack had more varied times
    *Sophie

    Yep that's what I got I think.
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    (Original post by Erin_2000)
    Think I got 5.73 and 13 for the mean
    Thank god!

    For b) was the standard deviation more variable or less variable? I said more but I wasn't sure
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    (Original post by jj1814)
    I'm pretty sure I got 5.73, I wasn't sure which numbers to use... Now I'm worried!
    That's exactly what I got!
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    (Original post by jj1814)
    I'm pretty sure I got 5.73, I wasn't sure which numbers to use... Now I'm worried!
    Please don't be worried I'm sure you're right and I'm wrong haha
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    Oh what did everyone get for the ladder question?
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    (Original post by Ethan100)
    To be quite honest, I really enjoyed revising for maths because I'm quite good at it, however, the SQA has completely destroyed my confidence.
    I can do maths, and I normally am like the "dark horse" in class but my confidence has died for higher next year.

    My confidence =
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    (Original post by jj1814)
    Thank god!

    For b) was the standard deviation more variable or less variable? I said more but I wasn't sure
    I said on average Sophie had to wait longer and compared the means, and then said her waiting times were less (or more I can't remember The other SD) consistent and compared the standard deviations
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    (Original post by Jay431)
    Oh what did everyone get for the ladder question?
    I got 62 but my method was... questionable! I'm terrible with angles. I did something like 140/150 * 66 and rounded up
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    (Original post by jj1814)
    I got 62 but my method was... questionable! I'm terrible with angles. I did something like 140/150 * 66 and rounded up
    Yeah I did something like that but got something in the 70s I think
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    (Original post by jj1814)
    I got 62 but my method was... questionable! I'm terrible with angles. I did something like 140/150 * 66 and rounded up
    I think I got 78 degrees, I used the sine rule
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    (Original post by jj1814)
    I got 62 but my method was... questionable! I'm terrible with angles. I did something like 140/150 * 66 and rounded up
    I think I used sine rule and got 70 something...? I'm not sure
    • Thread Starter
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    (Original post by Jay431)
    Yeah I did something like that but got something in the 70s I think
    I got 74
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    (Original post by Erin_2000)
    I think I got 78 degrees, I used the sine rule
    (Original post by Abbyy1234)
    I think I used sine rule and got 70 something...? I'm not sure
    Yes this is what I done.

    Used sine rule.
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    (Original post by Jay431)
    Yeah I did something like that but got something in the 70s I think
    71? I just did it with 150/140 instead of the other way round... I hope I at least get a mark for the working!
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    (Original post by eve_4342)
    I got 74
    It was either 74, 76 or 78. I can't remember lol.
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    I don't know if anyone would be interested but the answer for the n to the power of something question is one over n to the power of 4
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    (Original post by Abbyy1234)
    I don't know if anyone would be interested but the answer for the n to the power of something question is one over n to the power of 4
    Yup that's what I got.

    I'm so happy because I'm terrible with those lol
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    For the subject of the formula thing did anyone get:

    K = L^2+P/4t
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    (Original post by Jay431)
    Yup that's what I got.

    I'm so happy because I'm terrible with those lol
    I know I was so happy when I go that, and the simplified trig identity, one right.
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    (Original post by Jay431)
    For the subject of the formula thing did anyone get:

    K = L^2+P/4t
    Yes that's the right answer.
 
 
 
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