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the number of hours worked per week by 400 statistic students are shown below: Number of hours Frequency 0 - 9 20 10 - 19
the number of hours worked per week by 400 statistic students are shown below:
Number of hours | Frequency |
0 - 9 | 20 |
10 - 19 | 80 |
20 - 29 | 200 |
30 - 39 | 100 |
The percentage of students working 19 hours or less is:
1. 20%
2. 25%
3. 75%
4. 80%
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