Real World Applications of Mean and Median Quick Check

Question

2 of 52 of 5 Items

Question
Use the table to answer the question.

Number of Siblings Number of 6th Graders
0 3
1 12
2 5
3 2
4 0
5 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.

(1 point)
Responses

3.83 siblings
3.83 siblings

1.43 siblings
1.43 siblings

1.67 siblings
1.67 siblings

2.50 siblings

Answer 1

To find the mean number of siblings, we need to first calculate the total number of siblings and then divide by the total number of 6th graders surveyed.

Total number of siblings:
0 * 3 = 0
1 * 12 = 12
2 * 5 = 10
3 * 2 = 6
4 * 0 = 0
5 * 1 = 5

Total = 0 + 12 + 10 + 6 + 0 + 5 = 33

Total number of 6th graders surveyed = 3 + 12 + 5 + 2 + 0 + 1 = 23

Mean = Total number of siblings / Total number of 6th graders surveyed
Mean = 33 / 23 = 1.43 siblings

Therefore, the mean number of siblings for the 6th graders surveyed by Kaylen is 1.43 siblings.