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# National 5 Maths Exam 2016

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1. (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.
2. (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
3. (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!
4. (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
5. Oh what did everyone get for the ladder question?
6. (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 =
7. (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
8. (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
9. (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
10. (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
11. (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
12. (Original post by Jay431)
Yeah I did something like that but got something in the 70s I think
I got 74
13. (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.
14. (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!
15. (Original post by eve_4342)
I got 74
It was either 74, 76 or 78. I can't remember lol.
16. 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
17. (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
18. For the subject of the formula thing did anyone get:

K = L^2+P/4t
19. (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.
20. (Original post by Jay431)
For the subject of the formula thing did anyone get:

K = L^2+P/4t

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