Maths, Addmaths and Statistics: Post your doubts here!

[starship]

Equilateral triangle means that each angle = 60 deg.
Bearing of C from A = 75+60 =135 deg.

How do we find the median?

Number of Fives 0 1 2 3 4
Frequency 1 2 3 5 1

if these are the values?

 

[starship]

Listen! When question says. Find bearing from B to A than where do we make the north?? On Point B or A

FROM B so from B

 

[starship]

Ok but how will we solve "Pie" sign

22/7 bro

 

[asma tareen]

FROM B so from B

but dont we draw from the one written after ONTO

 

[starship]

Equilateral triangle means that each angle = 60 deg.
Bearing of C from A = 75+60 =135 deg.

B part

 

[starship]

but dont we draw from the one written after ONTO

Wha?

 

[asma tareen]

Wha?

well i always used to draw the bearing from the letter written after onto i got correct answers

 

[usama321]

Listen! When question says. Find bearing from B to A than where do we make the north?? On Point B or A

well i always used to draw the bearing from the letter written after onto i got correct answers

the question is usually phrased bearing of A from B. But if they rephrase it and write it "from B to A" you have to take the north at B. Just understand the basic concept behind it. we are taking the bearing of an object "From" a specific point meaning we are calculating the angle at which the second object is from the north of the first object. So, that is why we draw north at the one on which it is written "from"

How do we find the median?

Number of Fives 0 1 2 3 4
Frequency 1 2 3 5 1

if these are the values?

median is mid value. So, 1+2+3+5+1 = 12. So there are two mid values 6 and 7. 6 lies in 2, and 7 is in 3, so i think we add 2+3 and divide them by 2. Ans should be 2.5

 

[farhan141]

What does a negative scale factor in enlargement do?

 

[usama321]

What does a negative scale factor in enlargement do?

enlarge it on the other side of the centre of enlargment, opposite to the original picture

 

[ahmed rockstar]

does any one know an alternative site for pastpapers of maths except xtremepapers and freeexampapers????
the papers section of xtremepapers is not opening

 

[usama321]

does any one know an alternative site for pastpapers of maths except xtremepapers and freeexampapers????
the papers section of xtremepapers is not opening

http://www.freeexampapers.com/

by the way, if you have a link of a paper from xtremepapers.com you can still open those papers. Also by editing the adress you can pretty much still open all papers on xpapers. Just skim back a little and you might find a link if you don't wanna use the above site

 

[usama321]

B part

there is only one possibility , blue in first case and then red. The prob of that would be 3/4*1/2 3/8

 

[starship]

there is only one possibility , blue in first case and then red. The prob of that would be 3/4*1/2 3/8

1/4

 

[Saad Mughal]

Listen! When question says. Find bearing from B to A than where do we make the north?? On Point B or A

FROM B means that north is ON B. And it's almost always bearing OF A from B or similar.

 

[robinhoodmustafa]

FROM B means that north is ON B. And it's almost always bearing OF A from B or similar.

ok.. They said. Draw bearing

B from A than North will be at A?

Tell me something that I should revise? any important topic or pastpaper

 

[Saad Mughal]

B part

There's only one red so,
Probability = 3/4 * 1/3 = 3/12 = 1/4

 

[AhsanAfzal]

ok.. They said. Draw bearing

B from A than North will be at A?

Tell me something that I should revise? any important topic or pastpaper

which one was the hardest pastpaper??

 

[Saad Mughal]

ok.. They said. Draw bearing

B from A than North will be at A?

Tell me something that I should revise? any important topic or pastpaper

Yes. Always look for the from. You know how bad-*** these CIE peepalz can be sometimes.
Yeah, revise circle theorems, probability, rates & ratios, loci and transformations. These are, what I believe, to be the most important P1 topics.

 

[robinhoodmustafa]

which one was the hardest pastpaper??

2005 June is different. It is hard