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The numbers of hours worked (per week) by 400 statistics students are shown below. Number of Hours Frequency 0 x < 10 20 10 x
The numbers of hours worked (per week) by 400 statistics students are shown below.
Number of Hours | Frequency | |||
0 x < 10 | 20 | |||
10 x < 20 | 80 | |||
20 x < 30 | 200 | |||
30 x < 40 | 100 |
The class width for this distribution _____.
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