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Using a Line Graph
The team hypothesizes that the waiting time for registration might vary
depending on the day of the week. They look at the data they have collected
on waiting times for registration:
| Event |
Registration |
| Monday |
120 min. |
| Tuesday |
40 min. |
| Wednesday |
30 min. |
| Thursday |
40 min. |
| Friday |
80 min. |
Average
for
week |
62 min. |
Next, they decide to create a line graph
with this data. The x-axis will represent the days of the week, and the y-axis
will represent the waiting time in minutes. They plot the data points on the
graph and connect the dots to form a line. Below is the line graph they create:
By observing the line graph, the team can clearly see that Mondays and Fridays
are the days with the longest wait in registration, and that Mondays are the
worst days for long waits.
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Case Study
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