4400 Higher November 2005 Paper 3 Q12

EdexcelHigherOld spec4 marksCumulative Frequency

12 The cumulative frequency graph gives information about the ages of people in India.
The cumulative frequency is given as a percentage of all the people in India.

Cumulative frequency (%) graph against age in years from 0 to 100; the curve rises steeply from the origin and levels off at 100% by about age 90

(a) Use the cumulative frequency graph to find an estimate for the percentage of people in India who are

(i) aged less than 20,

(ii) aged 54 or over. (2)

(b) Find an estimate for the interquartile range of the ages of people in India. (2)

Scheme	Marks
(i) 42 – 44	B1
(ii) 10 – 12	B1
	(2)

Scheme	Marks
UQ = 41 – 43 \(\quad\) LQ = 10 – 12	M1
28 – 33	A1
	(2)
	(4 marks)

Notes