00:02
So, the correlation so, the correlation is a measure of the strength and the direction of the linear relationship between two variables.
00:23
So, in this case the two variables are the water ph and its hardness.
00:36
So, in order to determine if the appropriate to use the correlation, first we need to know if there is a linear relationship between these two variables or not.
00:46
So, without any data or information about the linear relationship between the ph and its hardness, we can definitely say if it is appropriate to use the correlation or not.
00:58
So, however, if the linear relationship is observed so, first suppose if there is a linear relationship observed between these two values, then it would be appropriate to use a correlation to summarize the strength of the association.
01:21
So, in conclusion we say that it is appropriate to use the correlation to summarize the strength of the association between the values which is ph water ph and the hardness, if there is a linear relationship observed in between these two values...