Mathematics, 18.10.2020 21:01 shod74

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יזיזיין
A shop is recording the queuing time of its customers and produces the
cumulative frequency graph shown below.
100
a) How many customers queued for more
than 20 minutes?
80
customers
Cumulative frequency
40
b) Find the median queuing time.
20
minutes
0
0
25
5
10 15 20
Queuing time (mins)

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