Maths P62

[generalsZH]

what answer u got in q1?
mine was somthing 2.02... (so less than 3)

wat was ur standard deviation, it was bit tricky

 

[ahmed t]

um no discussion so cant tell you
but yours is obviously wrong they wanted probability which is never more than one!

 

[BILALrox01]

.109 and sd 8.3 and 8.41

 

[cyberpunk]

nice i got the same anwers as well. Was a difficult paper but aced it Alhamdulillah.

 

[Gooners]

Guys watt was the answer to the Q6....mean nd probability of 21.5-22.5 nd the less Ghana 2 out of 4somethin............
Nd wht was the final S.D after addition of 29..............

 

[ahmed t]

^^^
the SD was 8.3 and 8.41 after addition of 29
mean of q6 was 21 cant remember the probability
how about question 2? did u use 24.5 instead of 25 ?

 

[Z.S.M]

The paper was cheesy........ I say so because i had a cheese sandwich right before the paper. What do you guys think the threshold will be this time? I am thinking 40 maybe. My entire class was screaming of joy :Yahoo!: . We had a hangout later in the evening :beer: .

 

[reekx94]

yes you use 24.5

and the 6 mark question you had to do normal then binomial and as i remember the answer was like 0.7 something.

for the sd i got 10.2 because i used 29 squared not 29 -45 ! FML

 

[Z.S.M]

What was the answer to the last part of q7?
i wrote ''(something power n-1)x(something power n+1)''.

 

[Z.S.M]

My sd was 8.27 and then 8.31. I have my fingers crossed. :%)

 

[Gooners]

The answer to the Q6 was I think 0.751 something............nd
Expression
(1/5)^n-1 x(2/5)
This is the majorities answer.....
I used 24.5 frQ2 :Yahoo!: ... My answer was 0.59 something................
My final S.D was 8.49 when 29 was added...

 

[EzioAuditre]

was there any question in whch we had to use critical values??

 

[generalsZH]

last part answer were 0.36 in one of the question. i only that remember.
guys how u sole 1st question. i found probabilty then multiply wid 4.8 as it was mean. i think so!!!

 

[generalsZH]

guys how u solvd question 1.
i found 1st probability then i multiply wid 4.8 as it was mean.

 

[Banglarbagh]

last part answer were 0.36 in one of the question. i only that remember.
guys how u sole 1st question. i found probabilty then multiply wid 4.8 as it was mean. i think so!!!

I gss we had to use binomial distribution for this question to find the probability.!

Btw i xpect GT to b arund 36- 38..!! :crazy: :crazy:

 

[onepersonaway]

guys how u solvd question 1.
i found 1st probability then i multiply wid 4.8 as it was mean.

Dude it was a bit tricky!! It said that in twenty throws Average we get 4.8 5s !! this means if we throw 20 times we might get 4.8 5s on an average so probability was 4.8/20 =0.24 and p2 was hence 0.76 and we had to solve it through binomial theorem