Infections are a cause of encephalopathy. Many types of bacteria, viruses, and fungi can cause encephalitis by infection and inflammation of the brain tissue or of the meninges (meningitis) that line the brain and spinal cord.
A value of zero indicates that there is no relationship between the two variables. If the correlation coefficient of two variables is zero, it signifies that there is no linear relationship between the variables. However, this is only for a linear relationship; it is possible that the variables have a strong curvilinear relationship.
A correlation coefficient of zero means your data sets or variables do not have a linear relationship. When data is predominantly non-linear, restricting the range can be helpful and provide a strong correlation for a portion of the data. To unlock this lesson you must be a Study.com Member.