NB: to find the median do n+1 / 2, if its a decimal then you do the average of the two values. to find the L.Q do 1/4 * n+1, if decimal then do the average, same applies to U.Q but for that it will be 3/4 * n+1
Oh god I thought I was going crazy with that paper My entire class said it was weird but now someone on the internet? I'm not going crazy But maths is sure sending me there
at 4:11 you need to use the standard deviation as square root of 3.6 not just 3.6. because it will be given in form of variance( standard deviation ^2)
because there are 2 L's lol, when terms are repeated or identical and if they ask you to arrange them then you are suppose to divide them by the number of repetition and use factorial like in this question, there were 2 L's and 8 spaces were there you could simply do 8P2 (since 2 L's) then divide this by 2! (since 2 L's) or either do 8C2x2!/2!
Isn't median supposed to be the middle number? So for the first case with 15 values it would be the 8th number instead of the average of the 7th and 8th
i have a doubt can anyone please solve it the 7th question c part of 9709/52/o/n/23 and the 7th question d part of 9709/51/o/n/20 in the 1st one we did 2C1*2C2*5C2 but in the second we just do 5C2
@@asandalevelonline im not sure exactly so like this question came in my mocks too, i always tried this method but i got it wrong, so my teacher told me to look at all the numbers before the median, and calculate the median of that set for Q1 and for Q3, you look at all the numbers after median and calculate median of that
NB:
to find the median do n+1 / 2, if its a decimal then you do the average of the two values.
to find the L.Q do 1/4 * n+1, if decimal then do the average, same applies to U.Q but for that it will be 3/4 * n+1
EXAM TOMMOROW THIS IS HELPFULLLLL
good luck to us
watching this an hour before my exam, my stupid brain thinks it can understand everything in just 5 mins🤧
My stats exam is tomorrow and after what they did with paper 9709/12 I’m hoping they make it easy, thank youuu
real
Real, not even Diddy could do what P1 did to me
real
Oh god I thought I was going crazy with that paper
My entire class said it was weird but now someone on the internet?
I'm not going crazy
But maths is sure sending me there
I have an exam in 1 hour 15 mins
at 4:11 you need to use the standard deviation as square root of 3.6 not just 3.6. because it will be given in form of variance( standard deviation ^2)
Just one missed formula at the end there for Geometric which is Mean or E(X)=1/p
Overall amazing summary thank you ♥️
I definitely owe you one….Got my exam in about 2 hours…..
same
Mine is starting at 1
exam tomorrow
U ready
@@AlexHemsworth-fe9lc no...or yes
@@RaidenTheTomb fucking same
@@AlexHemsworth-fe9lc no
same.. not ready
edit 13 hours later: that exam was horrendous i don’t think i passed that
thank you so much exam on Wednesday this really helped
Hi I didn't understand from 2:20-2:29...where did the new 'n' come from and what happened to k ?
i think the 'new n' is supposed to be k. its probably just a mistake lmao
bro its just for revision means you have to know all the concepts, this is just last min revision
For any future reader: the formula in the formula book: mean = Ex / n
n is the number of objects you have
i.e. 30 objects (in this example)
But I think this confused them a bit, as well
Because n=30, k should be multiplied by that
We all have our moments
Hi also, If L repeats twice why do you have to divide it by 2!, if that's what you're finding out ? 2:38-3:02
because there are 2 L's lol, when terms are repeated or identical and if they ask you to arrange them then you are suppose to divide them by the number of repetition and use factorial like in this question, there were 2 L's and 8 spaces were there you could simply do 8P2 (since 2 L's) then divide this by 2! (since 2 L's) or either do 8C2x2!/2!
Am i the only reading this rn before the exam?
Hi 👋 could you make videos on computer science 9618 and economics 9708
at 3:02, why did you do 8*7
same thing as 8P2, if that's how you have learnt it
Isn't median supposed to be the middle number? So for the first case with 15 values it would be the 8th number instead of the average of the 7th and 8th
yes your right sorry for that, it is always n+1/2, but if its a decimal then you find the average between the two numbers
1:36 10/52,20/28?
Please make a video on P3 Alevel maths as well
I would recommend zainmatics also if you know Hindi or Urdu. He's one of the regarding Cambridge maths
i have a doubt
can anyone please solve it
the 7th question c part of 9709/52/o/n/23
and the 7th question d part of 9709/51/o/n/20
in the 1st one we did 2C1*2C2*5C2
but in the second we just do 5C2
They are asking for L s are not next to each other???
I got my s1 exam in like 4 hours 😅
Exam in 25 thx bro you saved my ass
really useful video thank you
Stop lieing to youself
for lower and upper quartile, i don’t think that formula always works
When will it not work?
@@asandalevelonline im not sure exactly so like this question came in my mocks too, i always tried this method but i got it wrong, so my teacher told me to look at all the numbers before the median, and calculate the median of that set for Q1 and for Q3, you look at all the numbers after median and calculate median of that
@@thiruveleyudham4376 check pinned comment, that should work
sir this paper link plz attached need to print😩
Exam tomorrow morning 😂
Exam in 30 mins...