Maths, Addmaths and Statistics: Post your doubts here!

[Asad.Babur]

nahi aye gi A* aa jaye bari baat hai

Than we are hopless, agar teri na aai tou

 

[Awesome12]

Awesome12's Classfellow said "A aa jai bari baat hai" and GOT DISTINCTION
I doubt you are going to get DOUBlE-Distinction

btw, he got WORLD DISTINCTION
and when his friends called him, and told him he got a distinction, he said
Tekhe yar, ALLAH HAFIZ

 

[Asad.Babur]

btw, he got WORLD DISTINCTION
and when his friends called him, and told him he got a distinction, he said
Tekhe yar, ALLAH HAFIZ

Disrespct of Distinction.

Dear CIE, try giving it to me! I would surely be more happy

 

[asadalam]

Guys how to draw a frequency polygon?I forgot :/

 

[Asad.Babur]

Guys how to draw a frequency polygon?I forgot :/

Guys how to draw a frequency polygon?I forgot :/

Point the Dots on Mid-Point of Groups...... Join throught straight lines.......

For curve plot on Upper Bound of Clases/Groupss

 

[asadalam]

Point the Dots on Mid-Point of Groups...... Join throught straight lines.......

For curve plot on Upper Bound of Clases/Groupss

Use mid value of class width right?

 

[Awesome12]

***amd***
for 7 (b) (i), why can't I apply the formula 2pirh?

http://papers.xtremepapers.com/CIE/...(Calculator Version) (4024)/4024_s09_qp_2.pdf
http://papers.xtremepapers.com/CIE/...(Calculator Version) (4024)/4024_s09_ms_2.pdf

 

[***amd***]

***amd***
for 7 (b) (i), why can't I apply the formula 2pirh?

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s09_qp_2.pdf
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s09_ms_2.pdf

it coz u have to find the area which is in contact with water, NOT THE AREA OF WHOLE CYLINDER. so, u'll find the area od the whole cylinder and then subtract the area represented by white.
or, simply, u see thee cross section. find the major arc length AB and multiply it with height.

 

[asadalam]

***amd***
for 7 (b) (i), why can't I apply the formula 2pirh?

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s09_qp_2.pdf
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s09_ms_2.pdf

We will apply 220/360 2pirh since we have to find the surface area in contact with water.

 

[Awesome12]

it coz u have to find the area which is in contact with water, NOT THE AREA OF WHOLE CYLINDER. so, u'll find the area od the whole cylinder and then subtract the area represented by white.
or, simply, u see thee cross section. find the major arc length AB and multiply it with height.

oooh so the area represented by the arc restricts it the water level
Thanks bro

 

[***amd***]

oooh so the area represented by the arc restricts it the water level
Thanks bro

yups
any time

 

[Asad.Babur]

Use mid value of class width right?

Yes, in Curve ........ You use Upper value!

 

[Awesome12]

For 8 (c), it says cos 25 = x/6
Why is it 25?

 

[asadalam]

For 8 (c), it says cos 25 = x/6
Why is it 25?

360-310=50/2=25 i guess.But i hope someone explains this question fully :/

 

[funky brat]

Disrespct of Distinction.

Dear CIE, try giving it to me! I would surely be more happy

Please don't try giving it to me. I highly doubt I would die of heart attack.

 

[Awesome12]

360-310=50/2=25 i guess.But i hope someone explains this question fully :/

Thanks. I get it, made a stupid mistake. Subtracted 380-310 instead of 360-310

 

[Awesome12]

Please don't try giving it to me. I highly doubt I would die of heart attack.

Distinctions have immense value, if you only knew

 

[Dark Destination]

Distinctions have immense value, if you only knew

What value do they have?

 

[funky brat]

Distinctions have immense value, if you only knew

I really don't know and I can't even think of getting one.

 

[Awesome12]

What value do they have?

I have heard the some colleges and unis are willing to provide you free accommodation and food (blah blah blah), if you get a distinction in a particular sub.