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Here is a histogram showing
the times taken to complete
a task.
40-
Estimate the percentage of 35-
people who took less than
30-
40 seconds to complete
the task.
25
Give your answer to
1 decimal place.
20
Density 15
10-
Frequency
Times taken to complete a task
5-
of
0 5 10 15 20 25 30 35 40 45 50
Time (seconds)