Mathematics: Post your doubts here!

[midha.ch]

Maths doubt of stem and leaf diagram, please help

Answer is also given in the picture in the smaller font

Thanks a tonne!

Median = Mid-term
we find the nth term where median lies using total number of terms
we have 71 insects for X (odd number)
so Median = {(71+1)/2}th term
= 36th term
start adding up the numbers on the left given in bracket
that's your frquency for the certain range
you"ll have 28th-44th term on the left side of 82 on the stem
5||82 is your median i.e. 0.835

Interquartile range = lower quartie - upper quartile
lower quartile = 25th percentile = {(25/100)x(71+2)}th term
= 18th term
= 0.814
upper quartile = 75th percentile = {(75/100)x(71+2)}th term
= 54th term
= 0.833
thus, IQ = 0.833-0.814 = 0.019

 

[midha.ch]

Any help , ?
for second question tell me the procedure , its a different question and assume my dy/dx = 2x +3

can you post the complete question?

 

[sitooon]

can you post the complete question?

Last question , last part
usama321

 

[midha.ch]

Last question , last part
usama321

 

[coffee+ict]

@ 2.24 in the morning.!!

 

[midha.ch]

@ 2.24 in the morning.!!

as matter of fact, yes!!
question to you is, Do we have a problem here, Brother??

 

[asma tareen]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w10_qp_11.pdf
any one help me with question 2 and 3 please

 

[Manal.A]

A is basically the amplitude so 9-3
B follows the formula 2pi/B=the period of the wave which in this case is pi ...so re arrange the Formula making B the subject to get 2..... C is basically the shift from the mean axes if u notice the wave is 3 places up from the x axis....
Hope it helps!

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s09_qp_1.pdf
in question 4 i
why do we do 360/180=2 to get B
and 9-3 to get A
6+x=9 to get C
PLEASSEEEE ANSWER AS SOON AS POSSILBE

 

[midha.ch]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w10_qp_11.pdf
any one help me with question 2 and 3 please

 

[asma tareen]

Thank u

 

[Muskan Achhpilia]

The formula to calculate median (50th percentile or any other percentile) without the cumulative frequency curve is :

lower class boundary +
((50n/100 - cf (till prev. class)/ f (of that interval))

where n is the total number of observed items or maximum cumulative frequency. First calculate the corresponding class by checking in which class the n/2th value lies then perform the relative ascribed function

Can you please plug in the values given in the table for any one country cause I am a little confused...

Thank you so much for the time and effort

 

[Muskan Achhpilia]

Median = Mid-term
we find the nth term where median lies using total number of terms
we have 71 insects for X (odd number)
so Median = {(71+1)/2}th term
= 36th term
start adding up the numbers on the left given in bracket
that's your frquency for the certain range
you"ll have 28th-44th term on the left side of 82 on the stem
5||82 is your median i.e. 0.835

Interquartile range = lower quartie - upper quartile
lower quartile = 25th percentile = {(25/100)x(71+2)}th term
= 18th term
= 0.814
upper quartile = 75th percentile = {(75/100)x(71+2)}th term
= 54th term
= 0.833
thus, IQ = 0.833-0.814 = 0.019

Thank you so much, but can you solve part (ii) of the question wherein the value of q and r must be deduced?

Thanks once again

 

[Supernatral]

Please, Are there any Cambridge Mathematics Pure 1 BRIEF & SHORT NOTES to study from?

 

[ZaqZainab]

Please, Are there any Cambridge Mathematics Pure 1 BRIEF & SHORT NOTES to study from?

They are hand written but quite short

 

[Supernatral]

They are hand written but quite short

Thanks Zaq! Hugely appreciated and I got 2 questions..
1st: Why they are named C1 NOTES even they are P1 NOTES?
2nd: Is there any P1 SHORT notes available for last-minute revision other than these notes?
thanks again.

 

[ZaqZainab]

Thanks Zaq! Hugely appreciated and I got 2 questions..
1st: Why they are named C1 NOTES even they are P1 NOTES?
2nd: Is there any P1 SHORT notes available for last-minute revision other than these notes?
thanks again.

I found them from this site and they were already named C1
I do have this other notes but they aren't that brief this are the only notes i have sorry don't have more short once

 

[Supernatral]

I found them from this site and they were already named C1
I do have this other notes but they aren't that brief this are the only notes i have sorry don't have more short once

I can't thank you enough for your help!
If it's OK with you to share that longer notes you have, it will be absolutely amazing!

 

[coffee+ict]

as matter of fact, yes!!
question to you is, Do we have a problem here, Brother??

I'd say study smart not hard. Quality not quantity.

 

[ZaqZainab]

I can't thank you enough for your help!
If it's OK with you to share that longer notes you have, it will be absolutely amazing!

This are the only once i have as i said but i would recommend you to check out
http://www.examsolutions.net/maths-revision/syllabuses/CIE/period-1/P1/module.php

 

[midha.ch]

I'd say study smart not hard. Quality not quantity.

Aaah! But don't you think I know that? You don't know my routine so how come you are already passing a comment? :|