S1, how was it? My answers, please put yours to compare.

[Davidd]

Hi ! How was the exam? What Grades do yous predict? Please post answers which u remember
Here are main : Q1 a) sth=-22408.... stt= 1491222.... b) r = -0.952 d) t=0.284-0.015h
Q2 a)25 b) IQR=17 Q2=51 c) outliers >88.5 <20.5
Q3 a) 0.55 b) 0.99 c) 0.375 d) 4 circles in venn diagram e) 0.25
Q4 a) Mean=24.2 SD=9.29 b)IQR=6.94 Q2=22.7
Q5 a) a=0.1 b=20.4 b) 20.4 c)24.8 d)0.2 e) 0.01
Q6 a)210 b)0.0274 c) 2.15

 

[april100]

Hi ! How was the exam? What Grades do yous predict? Please post answers which u remember
Here are main : Q1 a) sth=-22408.... stt= 1491222.... b) r = -0.952 d) t=0.284-0.015h
Q2 a)25 b) IQR=17 Q2=51 c) outliers >88.5 <20.5
Q3 a) 0.55 b) 0.99 c) 0.375 d) 4 circles in venn diagram e) 0.25
Q4 a) Mean=24.2 SD=9.29 b)IQR=6.94 Q2=22.7
Q5 a) a=0.1 b=20.4 b) 20.4 c)24.8 d)0.2 e) 0.01
Q6 a)210 b)0.0274 c) 2.15

wasn't the answer to 1)a) supposed to be upto 3 s.f.

 

[Davidd]

Cant remember ;p

 

[Alla' Abu-Sultaneh]

wasn't the answer to 1)a) supposed to be upto 3 s.f.

i forgot to put them to 3 s.f how many marks do you think i'll lose?

 

[Irfan1995]

Hi ! How was the exam? What Grades do yous predict? Please post answers which u remember
Here are main : Q1 a) sth=-22408.... stt= 1491222.... b) r = -0.952 d) t=0.284-0.015h
Q2 a)25 b) IQR=17 Q2=51 c) outliers >88.5 <20.5
Q3 a) 0.55 b) 0.99 c) 0.375 d) 4 circles in venn diagram e) 0.25
Q4 a) Mean=24.2 SD=9.29 b)IQR=6.94 Q2=22.7
Q5 a) a=0.1 b=20.4 b) 20.4 c)24.8 d)0.2 e) 0.01
Q6 a)210 b)0.0274 c) 2.15

I got the same results for 1 a and b.
For d), I got t = 24.16 - 0.015h
I got the same answers for question 2
Can't remember 3a and b, but I got the same answers for c, d, and e
I got the same answers for 4a, can't remember the rest
Q5:a) a = 0.1, b = 0.2
can't remember the rest of the question
Q6, same results. But for part b, you're supposed to express it as a percentage, so I put 2.74%

 

[Liam hadfield]

pretty much the same!

 

[NoNo_10]

Hi ! How was the exam? What Grades do yous predict? Please post answers which u remember
Here are main : Q1 a) sth=-22408.... stt= 1491222.... b) r = -0.952 d) t=0.284-0.015h
Q2 a)25 b) IQR=17 Q2=51 c) outliers >88.5 <20.5
Q3 a) 0.55 b) 0.99 c) 0.375 d) 4 circles in venn diagram e) 0.25
Q4 a) Mean=24.2 SD=9.29 b)IQR=6.94 Q2=22.7
Q5 a) a=0.1 b=20.4 b) 20.4 c)24.8 d)0.2 e) 0.01
Q6 a)210 b)0.0274 c) 2.15

Mashallah.. You guys memorize your answers =)

 

[ASLevelsnerd]

Hi ! How was the exam? What Grades do yous predict? Please post answers which u remember
Here are main : Q1 a) sth=-22408.... stt= 1491222.... b) r = -0.952 d) t=0.284-0.015h
Q2 a)25 b) IQR=17 Q2=51 c) outliers >88.5 <20.5
Q3 a) 0.55 b) 0.99 c) 0.375 d) 4 circles in venn diagram e) 0.25
Q4 a) Mean=24.2 SD=9.29 b)IQR=6.94 Q2=22.7
Q5 a) a=0.1 b=20.4 b) 20.4 c)24.8 d)0.2 e) 0.01
Q6 a)210 b)0.0274 c) 2.15

What did you write for the reasoning question for Q4) f)? Where it asked what will happen to the mean, median, standard deviation etc, when the time is reduced by 5 minutes or something?

 

[Davidd]

That mean and median will decrease and sd will stay the same ;d dont know if its right ;/

 

[Lemony]

I got -0.0105 for b in the first q :/ Also, for q4.) I said mean decreased by 5, SD stayed the same, Q1/Q2/Q3 and IQR decreased by 5

 

[Lemony]

That mean and median will decrease and sd will stay the same ;d dont know if its right ;/

I got this

 

[Davidd]

t=0.284-0.015h i got that for regression line i think my a is wrong ;o how many points will i get? and in e and f we had to use that equation, will i get carry on marks for it?

 

[ASLevelsnerd]

That mean and median will decrease and sd will stay the same ;d dont know if its right ;/

I wrote the mean will decrease, median will stay the same :/
I'm not too sure though...

 

[Zifa]

Hi ! How was the exam? What Grades do yous predict? Please post answers which u remember
Here are main : Q1 a) sth=-22408.... stt= 1491222.... b) r = -0.952 d) t=0.284-0.015h
Q2 a)25 b) IQR=17 Q2=51 c) outliers >88.5 <20.5
Q3 a) 0.55 b) 0.99 c) 0.375 d) 4 circles in venn diagram e) 0.25
Q4 a) Mean=24.2 SD=9.29 b)IQR=6.94 Q2=22.7
Q5 a) a=0.1 b=20.4 b) 20.4 c)24.8 d)0.2 e) 0.01
Q6 a)210 b)0.0274 c) 2.15

Hey, so i got most of the same answers as you did buuut in Q6.) i got all different answers, my mean was 190 and in part c.) i got s.d as 5.7 something!
Sooo How did yu arrive at your answers??

 

[MarvinM]

The mean in that question will be the same and I don't know anymore what else i put for the other one. I think I got the regression line wrong , I got something like a=560 or similar . Q 2 ) for part a I got 30 and for the interquartile range I got 17 so therefore q1 and q3 must of been right , also I got the same for outliers , that box plot question was an absolute gift. The one I hated the most was the question with probabilities , only got a) which is 11/20 , and for the Venn diagram I got 3 circles. The other I hated was the last one , stupid normal distribution , for the standard deviation I got like 15.7 or similar and for the mean I got 206 ... Stupid question . Also didn't it say for the mean and standard deviation question (was it q5?) it said estimate not calculate , I just calculated it , would that be right?. To be honest I think the grade boundaries won't be that high as this wasn't an too easy paper , this paper had some naughty things in it

 

[saba1996]

I left the venn diagram question out. Im failing.

 

[Adam94]

I left the vein diagram too ...
And i didn't see they asked for SD in 4a ... :/

 

[MarvinM]

I left the vein diagram too ...
And i didn't see they asked for SD in 4a ... :/

They asked for the mean and standard deviation ;/

 

[bokoharam2]

the regression equation was messed up: i but Stt instead of Shh, would i still get any marks?

 

[Irfan1995]

The mean, median, quartiles and the interquartile range will ALL decrease by 5 minutes
The standard deviation will stay the same.
I'm pretty sure of my answer.