Qualification > Math

IGCSE MATHS Doubts

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Shazizzzle:
SIMPLE MEDIAN METHOD.

Total number of terms (sum of frequencies) = n

n/2

if the ans to the above is in decimals, e.g say 7.5, the you round it, to the next term. 8. So THE 8TH term is THE MEDIAN.

If the ans to the above is an integer, say 10, you take 10, AND THE NEXT, i.e 10th AND 11th terms, take their average (i.e 10th + 11th / 2)
and, voila, that's the median.

SIMPLE. :)

Vin:
@ Shazizzzle .. Thanks .. i'd figured tht out already .. +rep for the efforts .. ;) ;)

u've answered a couple ov answers before too .. Thanks .. :)

Baladya:

--- Quote from: ~VIN1094~ on May 11, 2010, 08:05:55 pm ---Page 6 q. 13 .. post a q. A@di is always there to ans it !! :P Thanks ..

--- End quote ---

Vin: a) is 20 its because if u take the square next to the origin (1cm3 square) it has a base of 10 years and a hieght of 10 pateints. Just multiply the two as if u want the area of that square

Shazizzzle:
Umm, June 2007, Q12. Which region is shaded?

Ghost Of Highbury:
ok shazzizle has already answered.

v use the same formula

first find the standard width (k)

sw = (h*cw)/f

then find the height

h = f * (sw/cw)
@baladaya - a is 100. 300/75 = 4. 25*4 = 100

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