2.
A survey of the average amount of time students spend on homework during the week was taken at Rocky Hill High School. 80 students participated in the survey. The results are displayed in the graph below.
If there are 2500, about how many students don?t do homework?
10
313
8
250
The graph does not provide any information about the number of students who don't do homework. Therefore, it is not possible to determine how many students don't do homework based on the given information.
To determine the number of students who don't do homework, we need to find the difference between the total number of students and the sum of students who spend different amounts of time on homework.
According to the graph, there are:
- 10 students who spend 0-1 hours on homework
- 313 students who spend 1-2 hours on homework
- 8 students who spend 2-3 hours on homework
- 250 students who spend 3-4 hours on homework
To find the total number of students who don't do homework, we need to subtract the sum of the above numbers from the total number of students:
Total number of students = 80
Total number of students who do homework = 10 + 313 + 8 + 250 = 581
Number of students who don't do homework = Total number of students - Total number of students who do homework
= 80 - 581
= -501
Since the result is negative (-501), this means that there is an error in the data or information provided. Please double-check the given information for accurate results.
To determine the number of students who don't do homework, we need to subtract the number of students who do homework from the total number of students.
According to the graph, the percentage of students who don't do homework is represented by the "0-1 hours" category. From the graph, it appears that about 10% of the students fall into this category.
To find the number of students represented by this percentage, you can calculate 10% of the total number of students.
10% of 80 (total number of students) is given by:
10/100 * 80 = 0.1 * 80 = 8
Therefore, about 8 students don't do homework.
So the answer is option C: 8.