X= number of students
3 students said they have 0 pets
4 students say they have 1 pet
2 students say they have 2 pets
6 students say they have 3 pets
2 students say they have 4 pets
1 student said they have 9 pets
Anna asked her classmates how many pets they have. This line plot shows the results. Find the MEAN number of pets. Process: Each x represents a number. Write down the numbers that the x's represent. Add the numbers together. Divide by the number of x's. Remember, "0" still counts as a number! (1 point)
Answers:
A. 2.39
B/ 4.3
C: 2.87
D. 4.78
First, we need to calculate the total number of pets by multiplying the number of students by the number of pets they have:
(3 students * 0 pets) + (4 students * 1 pet) + (2 students * 2 pets) + (6 students * 3 pets) + (2 students * 4 pets) + (1 student * 9 pets) = 0 + 4 + 4 + 18 + 8 + 9 = 43 pets
Next, we need to calculate the mean number of pets by taking the total number of pets and dividing it by the total number of students:
43 pets / 18 students = 2.39 pets
Therefore, the correct answer is:
A. 2.39