Two different age groups were surveyed about
the amount of time they spent on social media.
...
Mathematics, 27.04.2021 14:00 vbucks72
Two different age groups were surveyed about
the amount of time they spent on social media.
The results are shown in the two frequency
polygons below. The same time intervals were
used for both graphs.
11-year old students
15-year old students
a) How
stude
80
70
80
70
the su
60
60
50
Frequency
240
L 30
b) How
old stu
old sty
betwe
on soc
20
20
10
10
0
0 10 20 30 40 50 60 70 80
Time (minsi
0
0 10 20 30 40 50 60 70 80
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