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) Responses 2.39 2.39 4.3 4.3 2.87 2.87 4.78 4.78
The numbers represented by the x's are: 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 9.
Adding them together: 0 + 1 + 1 + 1 + 1 + 2 + 2 + 3 + 3 + 3 + 3 + 3 + 3 + 4 + 4 + 9 = 43
Dividing by the number of x's (16): 43 / 16 = 2.6875
The mean number of pets is 2.69.