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.
The correlation coefficient ranges from -1 to 1. A value of zero means that there is no correlation. between x and y. A value of 1 means there is perfect correlation between them: when x goes up, y goes. up in a perfectly linear fashion . A value of -1 is a perfect anti-correlation: when x goes up, y goes down in.