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maths help needed..!

immi1234

immi1234

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Can someone explain upper quartile, lower quartile, upper bound, lower bound to me..?
 
Muhammad TAimoor

Muhammad TAimoor

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immi1234 said:
Can someone explain upper quartile, lower quartile, upper bound, lower bound to me..?
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Remember it like this. Upper Quartile is 3/4th part of Frequency and Lower Quartile is 1/3rd e.g if the total frequency is 100, its upper quart will be 75 and lower would be 25. Just find the Value on the x-axis from the graph, that'll be ur answer.
 
sabasi

sabasi

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Muhammad TAimoor said:
Remember it like this. Upper Quartile is 3/4th part of Frequency and Lower Quartile is 1/3rd e.g if the total frequency is 100, its upper quart will be 75 and lower would be 25. Just find the Value on the x-axis from the graph, that'll be ur answer.
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lower quartile is 1/4 of total frequency
 
Zain Salman Dar

Zain Salman Dar

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Minnie said:
http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_w11_qp_22.pdf
Q3 please? i dont get how to do it.
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ai) 1 line of symmetry
aii) 360/5= 72
( 72/360*pi*R^2)/2 = pi*r^2
R^2/10 = r^2
From the above equation radius of smaller circle is equal to 1/10 of the radius of larger circle = R^2: r^2 = 10:1
bi) concept of cyclic quadrilateral. Centre angle = 72, angle opposite of it= 180-72=108. Reflex angle= 360-108= 253 [Hence proved]
bii) Circumference of larger sector = 252/360*2*pi*r*5= 7*pi*r=k=7
 
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