WJEC Further Maths Pure A AS Exam 13th May Watch

Adaal
Badges: 7
Rep:
?
#21
Report 6 days ago
#21
How did everyone find further stats today? I thought it was ok, but I couldn't do the exponential distribution 3 marker.
1
reply
itsbritneyb*tch
Badges: 7
Rep:
?
#22
Report 6 days ago
#22
(Original post by Adaal)
How did everyone find further stats today? I thought it was ok, but I couldn't do the exponential distribution 3 marker.
Ye it was ok. I don’t think anybody could’ve answered that 3 marker :/
Posted on the TSR App. Download from Apple or Google Play
0
reply
Rockrs
Badges: 8
Rep:
?
#23
Report 6 days ago
#23
(Original post by itsbritneyb*tch)
Ye it was ok. I don’t think anybody could’ve answered that 3 marker :/
I got 0.6 something getting the parameter 0.1, parameter=2 from previous question
0
reply
Adaal
Badges: 7
Rep:
?
#24
Report 6 days ago
#24
On the same question, where you had to get the mean I've got 12
(Original post by Rockrs)
I got 0.6 something getting the parameter 0.1, parameter=2 from previous question
0
reply
Ollymapps
Badges: 3
Rep:
?
#25
Report 6 days ago
#25
(Original post by Rockrs)
I got 0.6 something getting the parameter 0.1, parameter=2 from previous question
i got parameter 2 as well but it was right at the end and i checked it real quick and uno the probability was meant to be 4 times.more likely, well it didnt check out so idk what that was asking for
Posted on the TSR App. Download from Apple or Google Play
0
reply
STEM.lover
Badges: 9
Rep:
?
#26
Report 6 days ago
#26
I got both of those answers
Posted on the TSR App. Download from Apple or Google Play
0
reply
Rockrs
Badges: 8
Rep:
?
#27
Report 6 days ago
#27
(Original post by Adaal)
On the same question, where you had to get the mean I've got 12
Exponential: mean=1/lambda
U had to the use lambda that you got for the exponential cdf. Is that what you did?
0
reply
Rockrs
Badges: 8
Rep:
?
#28
Report 6 days ago
#28
(Original post by STEM.lover)
I got both of those answers
My answers? It was like 0.6689 or something like that
0
reply
STEM.lover
Badges: 9
Rep:
?
#29
Report 6 days ago
#29
(Original post by Rockrs)
My answers? It was like 0.6689 or something like that
Yes, I think I got that. And parameter as 2
Posted on the TSR App. Download from Apple or Google Play
0
reply
Adaal
Badges: 7
Rep:
?
#30
Report 6 days ago
#30
Since the question was talking about probabilities when X=3 and X=4, I used the Poisson formula to find lambda
(Original post by Rockrs)
Exponential: mean=1/lambda
U had to the use lambda that you got for the exponential cdf. Is that what you did?
0
reply
Adaal
Badges: 7
Rep:
?
#31
Report 6 days ago
#31
Sorry if i didnt make it clear that I'm referring to the part b) of the question, not the last part with the exponential
(Original post by Adaal)
Since the question was talking about probabilities when X=3 and X=4, I used the Poisson formula to find lambda
0
reply
Adaal
Badges: 7
Rep:
?
#32
Report 6 days ago
#32
Did you get something like 0.111 as the probability for the part a) of that question
(Original post by STEM.lover)
Yes, I think I got that. And parameter as 2
0
reply
Adaal
Badges: 7
Rep:
?
#33
Report 6 days ago
#33
Do you remember how you did part b) ?
(Original post by STEM.lover)
Yes, I think I got that. And parameter as 2
0
reply
STEM.lover
Badges: 9
Rep:
?
#34
Report 6 days ago
#34
I can’t remember the numbers anymore, but I set up the equation for the one that was smaller making it equal to p. And then the other one I think I made it equal to 3p whatever the number was, then I multiplied through the factorials and got two simultaneous equations and solved It by cancelling out e^-lamda. Then I had x^4/ x^2 so x^2 was equal to 4 I think. Therefore x was 2

I’m sorry that’s probably really confusing
Posted on the TSR App. Download from Apple or Google Play
0
reply
Rockrs
Badges: 8
Rep:
?
#35
Report 6 days ago
#35
(Original post by Adaal)
Did you get something like 0.111 as the probability for the part a) of that question
Yea 0.1119 or something , I hope Further Mech will be a little nicer than last year
0
reply
Adaal
Badges: 7
Rep:
?
#36
Report 6 days ago
#36
Name:  1558027287523271686213534724248.jpg
Views: 4
Size:  261.1 KB that's what I did, not sure if it's right
(Original post by STEM.lover)
I can’t remember the numbers anymore, but I set up the equation for the one that was smaller making it equal to p. And then the other one I think I made it equal to 3p whatever the number was, then I multiplied through the factorials and got two simultaneous equations and solved It by cancelling out e^-lamda. Then I had x^4/ x^2 so x^2 was equal to 4 I think. Therefore x was 2

I’m sorry that’s probably really confusing
0
reply
STEM.lover
Badges: 9
Rep:
?
#37
Report 6 days ago
#37
Tbh that does look right. I seem to think x=2 not x=3 so maybe I’m just forgetting the numbers
Posted on the TSR App. Download from Apple or Google Play
0
reply
Adaal
Badges: 7
Rep:
?
#38
Report 6 days ago
#38
I wouldn't be surprised if I read the question wrong. In any case, good luck on the mechanics paper (and the physics tomorrow if you're doing physics).
(Original post by STEM.lover)
Tbh that does look right. I seem to think x=2 not x=3 so maybe I’m just forgetting the numbers
0
reply
STEM.lover
Badges: 9
Rep:
?
#39
Report 6 days ago
#39
(Original post by Adaal)
I wouldn't be surprised if I read the question wrong. In any case, good luck on the mechanics paper (and the physics tomorrow if you're doing physics).
Thank you, you too. And yes I am.
Posted on the TSR App. Download from Apple or Google Play
0
reply
Rockrs
Badges: 8
Rep:
?
#40
Report 6 days ago
#40
(Original post by Adaal)
I wouldn't be surprised if I read the question wrong. In any case, good luck on the mechanics paper (and the physics tomorrow if you're doing physics).
I thought it said p(X=2) not 3 like you've done because in our FM class there are only 4 of us and we all got lambda =2 . But maybe I'm mistaken
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • Arts University Bournemouth
    Art and Design Foundation Diploma Further education
    Sat, 25 May '19
  • SOAS University of London
    Postgraduate Open Day Postgraduate
    Wed, 29 May '19
  • University of Exeter
    Undergraduate Open Day - Penryn Campus Undergraduate
    Thu, 30 May '19

How did your AQA GCSE Physics Paper 1 go?

Loved the paper - Feeling positive (350)
30.54%
The paper was reasonable (460)
40.14%
Not feeling great about that exam... (197)
17.19%
It was TERRIBLE (139)
12.13%

Watched Threads

View All