Gcse Exam Questions On Cumulative Frequency (Grade B) Page 2
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10Daniel took a sample of 100 pebbles from Tawny Beach.
2.
He weighed each pebble and recorded its weight.
He used the information to draw the cumulative frequency graph shown on the grid.
(a)
Use the cumulative frequency graph to find an estimate for
(i)
the median weight of these pebbles,
.............................. grams
(ii)
the number of pebbles with a weight more than 60 grams.
.........................................
(3)
Cumulative
Frequency
120
100
80
60
40
20
O
10
20
30
40
50
60
70
80
Weight (grams)
LILIAN BAYLIS TECHNOLOGY SCHOOL
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