The data from the survey can be summarized as follows:
0.5 hours - 1 student
0.5 hours - 1 student
1 hour - 1 student
1.5 hours - 2 students
2 hours - 2 students
2.5 hours - 1 student
3 hours - 2 students
3.5 hours - 1 student
5 hours - 1 student
8 hours - 1 student
10 hours - 1 student
From this data, we can calculate the mean (average) number of hours spent on assignments and assessments by adding up all the hours and dividing by the total number of students surveyed:
(0.5 + 0.5 + 1 + 1.5 + 1.5 + 2 + 2 + 2.5 + 3 + 3 + 3.5 + 5 + 8 + 10) / 15 = 45 / 15 = 3
Therefore, the mean number of hours spent on assignments and assessments last week by Mrs. Rodriguez's ninth grade students is 3 hours.
Mrs. Rodriguez randomly surveyed 15 of her ninth grade students on how many hours they spent completing assignments and preparing for assessments last week 0.5 05 10 15 1.5 1.5 2 2 25 3 3 35 5 8 10
1 answer