Answer:Negative correlation
Explanation:
Correlation refers to an association or relationship that exist between two variables which doesn't mean causation.
Negative correlation occurs when a relationship between these two variable is negative in a way that when one variable increases the other one decreases
A perfect negative correlation is statistically represented by a value of -1,and +1 represent a perfect positive correlation which occurs when one variable increases and the other one also increases.
I believe the correct answer would be Japan.
Their mother teaching things in the same way for both of them
The Case Study Method is the correct answer.
The research plan Jamie chooses to identify what experiences may contribute to children's hyperactivity is referred to as the case study method. A case study method is a deeper analysis of one person's behavior (or a small number of people's) that allows the researcher to obtain more details and also to reconstruct the 'case history' of a participant.