To find the balancing point, we first need to calculate the mean (or average) of the dataset. This involves taking into account the number of students working each hour.
From the table provided, the data can be summarized as follows:
- 3 hours: 7 students
- 4 hours: 4 students
- 5 hours: 1 student
- 6 hours: 4 students
- 7 hours: 7 students
Calculating the mean:
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Multiply each hour by the number of students:
- \(3 \times 7 = 21\)
- \(4 \times 4 = 16\)
- \(5 \times 1 = 5\)
- \(6 \times 4 = 24\)
- \(7 \times 7 = 49\)
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Add these results together:
- Total = \(21 + 16 + 5 + 24 + 49 = 115\)
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Count the total number of students:
- Total number of students = \(7 + 4 + 1 + 4 + 7 = 23\)
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Calculate the mean:
- Mean = \(\frac{Total,value}{Total,students} = \frac{115}{23} \approx 5\)
Thus, the mean, or balancing point of the dataset, is approximately 5.
Therefore, the correct response is: The balancing point is 5.