Answer :
To solve the problem of finding the ratio of the total number of students who used their computers to the total number of students surveyed, let's follow these steps:
1. Determine the Total Number of Students Surveyed:
- Liliana surveyed 20 seventh-grade students. So, the total number of students surveyed is 20.
2. Identify Students Who Used Their Computers:
- We need to count how many students reported spending more than 0 hours on their computers. Here is the list of hours:
8, 15, 0, 11, 12, 13, 16, 13, 0, 4, 17, 14, 30, 13, 5, 12, 1, 13, 12, 21.
- By going through the list, we count how many of these numbers are greater than 0. The count is 18 students who used their computers.
3. Calculate the Ratio:
- To find this ratio, divide the number of students who used their computers by the total number of students surveyed.
- The ratio is 18 (students using computers) to 20 (total students), which simplifies to [tex]\(\frac{18}{20} = \frac{9}{10}\)[/tex].
Therefore, the ratio of students who used their computers to the total number of students surveyed is [tex]\(\frac{9}{10}\)[/tex].
1. Determine the Total Number of Students Surveyed:
- Liliana surveyed 20 seventh-grade students. So, the total number of students surveyed is 20.
2. Identify Students Who Used Their Computers:
- We need to count how many students reported spending more than 0 hours on their computers. Here is the list of hours:
8, 15, 0, 11, 12, 13, 16, 13, 0, 4, 17, 14, 30, 13, 5, 12, 1, 13, 12, 21.
- By going through the list, we count how many of these numbers are greater than 0. The count is 18 students who used their computers.
3. Calculate the Ratio:
- To find this ratio, divide the number of students who used their computers by the total number of students surveyed.
- The ratio is 18 (students using computers) to 20 (total students), which simplifies to [tex]\(\frac{18}{20} = \frac{9}{10}\)[/tex].
Therefore, the ratio of students who used their computers to the total number of students surveyed is [tex]\(\frac{9}{10}\)[/tex].
