Use the table to answer the question.
Number of Siblings: 0, 1, 2, 3, 4, 5
Number of 6th Graders: 3, 12, 5, 2, 0, 1
Kaylen wants to know how many siblings 6th graders have. She , ,, surveys the 6th graders on her soccer team. Her results are given in the table.
What is the mean number of siblings for the 6th graders that she surveyed? Round your answer to the nearest hundredth.
Responses:
1.43 siblings
2.50 siblings
1.67 siblings
3.83 siblings
To find the mean number of siblings, we need to multiply the number of siblings by the number of 6th graders, then add those all up and divide by the total number of 6th graders surveyed.
(0 siblings * 3 students) + (1 sibling * 12 students) + (2 siblings * 5 students) + (3 siblings * 2 students) + (4 siblings * 0 students) + (5 siblings * 1 student) = 0 + 12 + 10 + 6 + 0 + 5 = 33 siblings
Total number of students surveyed: 3 + 12 + 5 + 2 + 0 + 1 = 23 students
Mean number of siblings: 33 siblings / 23 students = 1.43 siblings
Therefore, the correct answer is: 1.43 siblings