Page 80 - Math SL HB Sem 3
P. 80
b [Maximum mark: SJ t W,t2rzz
The cumulative frequency curve below represents the marks obtained by 100 students.
100
95
90
85
80
75
I
70
65
(.)
60
o)
q 1
55
tl.
50 I
45
E I
(J 40
35
30
25
20
l5
l0
5
0 l0 20 30 40 50 60 70 80 90 100
Mark
(a) Find the median mark. marks]
[2
(b) Find the interquartile range.
[3 marks]
-
L
__J
@
+
)'
