IGCSE MATHS Doubts

[The Golden Girl =D]

bitawfeeg inshAllah ...

gd luck everyone 

[Ghost Of Highbury]

Can anyone help me out with M/J 2008, question 4 part c? It's a little confusing

height = frequency/n

9 = 30/n

n = 3.33.

class width = n* standard width

10 = 3.33.. * sw

sw = 3

---
h = sw * f/cw

for 0<h<=30

h = 3 * 82/30 = 8.2

do the same for the rest...

[aangel42]

If anyone has the time: June 2003 Paper 4 Q7 b. ii.) ?

[Airhead]

Thank you so much! I really needed help with that one

[princess12]

can any 1 explain me oct 2003 q 1 (b) all  
reply me fast urgently plaese  

[CatAly$t]

can somebody tell me about shear and stretch?? m really confused....  

i need to know: how to know the scale factor?
                      how to know which axis is the invariant?
                      
thanks.............

[Ghost Of Highbury]

If anyone has the time: June 2003 Paper 4 Q7 b. ii.) ?

CF = 2a-2b

CF/2 = a-b

CF/2 = CX

CX = a-b

CX is parallel to AB

|AB| = |OA| .. ( |AB| means length of AB)

OA = a

|AB| = a = 5

[princess12]

can any 1 explain me oct 2003 q 1 (b) all
 

[Dibss]

Q- 24 students in a class asked whether they like football or basket ball.
iv) a student who likes football is selected at random. what is the probability that this student likes basketball?
i know it's a simple qs, but please answer since my answer was different from my teacher's and since i don't know if it's from a past paper i can't use a mark scheme to check :|

[Vin]

can somebody tell me about shear and stretch?? m really confused....  

i need to know: how to know the scale factor?
                      how to know which axis is the invariant?
                      
thanks.............

all taken from the forum ..

[Shazizzzle]

Good Luck Guys!

[Ghost Of Highbury]

can any 1 explain me oct 2003 q 1 (b) all  
reply me fast urgently plaese  

ans 1b) 144 adults, 96 children

bi) 1/3 * 96 = 32 children

bii) 37.5/100 * 144 = 54 adults

biii) 144-54 = 90

      90 + 20 = 110 adults

biv) 96-32 = 64 children still left
       110 adults already in..

110 + 64 = 174

200 - 174 = 26..

[Vin]

Q- 24 students in a class asked whether they like football or basket ball.
iv) a student who likes football is selected at random. what is the probability that this student likes basketball?
i know it's a simple qs, but please answer since my answer was different from my teacher's and since i don't know if it's from a past paper i can't use a mark scheme to check :|

whoa insufficient data !!

[Ghost Of Highbury]

Q- 24 students in a class asked whether they like football or basket ball.
iv) a student who likes football is selected at random. what is the probability that this student likes basketball?
i know it's a simple qs, but please answer since my answer was different from my teacher's and since i don't know if it's from a past paper i can't use a mark scheme to check :|

Check the question, any other details given?? For e.g how many like only basket ball, or how many like only football etc??

[Syed Kazim]

Q- 24 students in a class asked whether they like football or basket ball.
iv) a student who likes football is selected at random. what is the probability that this student likes basketball?
i know it's a simple qs, but please answer since my answer was different from my teacher's and since i don't know if it's from a past paper i can't use a mark scheme to check :|

The question is from O/N/05. Question 4.

(14/24)*100=58.3%

The answer written above is incorrect. The correct answer is 12/19. Read this post to know more.