How was your statistics paper 1.. (9709/62)

[Rehman Mallik]

bro... how did you solve 5(i)?

 

[B!(+)(+)dy $k(_)!!]

Yep thats exactly how i did it! Do you remember how many marks were there on q2 ii girls not next to each other?

yuppp... 3 marks
The answer was 6! x 7P4
Why? Did you make a mistake?

 

[B!(+)(+)dy $k(_)!!]

bro... how did you solve 5(i)?

Which part?
Because the 1st part was very easy i.e P(X<8) one...
And q was 7.74 that was also easy...

 

[Rehman Mallik]

You mean the tree diagram right?
---------------------------------------------------
x 1 2 3
P(X=x) 1/3 1/3 1/3
---------------------------------------------------
Therefore, E(X) = 1/3 + 2/3 + 3/3 = 2 attempts

bro... how did you slove 5(i) and 5(ii)?

 

[B!(+)(+)dy $k(_)!!]

Yup i think this is the only mistake i did 7x6x5x4 x4!

Ohhhh... So you'd get at least 1 mark...
So expecting 48/50?
btw , what was ua height? (the cumulative frequency one) ?

 

[B!(+)(+)dy $k(_)!!]

bro... how did you slove 5(i) and 5(ii)?

P(X<8) is normal distribution so P(Z<(8-7.15)/0.88) i.e P(Z<0.966)
P(X<q) also by the same method

 

[Rehman Mallik]

Ohhhh... So you'd get at least 1 mark...
So expecting 48/50?
btw , what was ua height? (the cumulative frequency one) ?

15.6

 

[B!(+)(+)dy $k(_)!!]

15.6

I got 15.3 but i think the q said more than 48% so we had to do total-15.6 right??

I got 15.6 cm but my friends are saying it shud be 21.5 cm

 

[B!(+)(+)dy $k(_)!!]

Do you remember if the question said more than or not tho?

It said 28% of daffodils are h cm or more.
Estimate the value of h. :/

 

[Amez]

Ya it said 28 percent

 

[Amez]

yups it did

 

[B!(+)(+)dy $k(_)!!]

But it did say more than ?

So what's the final answer?

 

[Amez]

I got 21.5 but i dnt knw if thats right

 

[Thought blocker]

Dont discuss before 24 hours.

 

[Prince04]

I there anyone who gave about Mechanics 2?????

 

[Zunaid321]

Can someone show me the tree diagram? :/

 

[Zunaid321]

and guyz can u tell me the questions of 4,5, and 7??...i wanna redo the math..to find out the answers!

 

[Crimson-Saint]

i got 16cm for height but i am sure i could not have missed if they have mentioned more than........idk !! but its just 2 marks so CHILL!

 

[muhammad05]

ermahgerd i haven't posted here in a long time. Feels good yo'
Statistics. went better than expected. Slightly harder that M/J 62, but easier than M/j 63. I was Really happy with it alhamduillah. lets hope we dont eff up. again

 

[Crimson-Saint]

ermahgerd i haven't posted here in a long time. Feels good yo'
Statistics. went better than expected. Slightly harder that M/J 62, but easier than M/j 63. I was Really happy with it alhamduillah. lets hope we dont eff up. again

i got a D in mj62 lool to me this was easier