Answer
Please see the histogram.
Work Step by Step
$8.8, 9.1, 3.5, 6.9, 7.3, 9.6, 9.0, 5.7, 7.2, 4.3, 8.9, 9.5$
$3.5, 4.3, 5.7, 6.9, 7.2, 7.3, 8.8, 8.9, 9.0, 9.1, 9.5, 9.6$
We can have 5 intervals (3-4.4, 4.4-5.8, 5.8-7.2,7.2-8.6, and 8.6-10).
Interval Observations
3-4.4 2
4.4-5.8 1
5.8-7.2 1
7.2-8.6 2
8.6-10 6