Final answer:
The two variables most likely to have a negative correlation are the number of absences from school and the student's grades, because as the number of absences increases, grades tend to decrease.
Step-by-step explanation:
The question you've asked is regarding which two variables are most likely to have a negative correlation. A negative correlation means that as one variable increases, the other variable tends to decrease. With that in mind, let's examine your options:
- The number of absences from school and the student's grades: As absences increase, it is often the case that grades may decrease due to missing class content, instructions, or assignments.
- The length of a person's hair and the amount of shampoo used: This is more likely to be a positive correlation because as the length of hair increases, the amount of shampoo used might also increase.
- The amount of time spent watching TV and the size of the TV: These are likely to be independent variables, as the size of the TV doesn't directly influence how much time a person spends watching it.
Thus, the answer is A. The number of absences from school and the student's grades. This is because there is generally a negative correlation between the number of absences (increasing) and grades (decreasing).