When you show the graph of lightning strikes, What does the positive and negitive strike percentage mean? Posted 2007-09-19T14:23:24+00:00 - Updated 2007-09-19T14:23:24+00:00 By ...

In statistics, a perfectly negative correlation is represented by the value -1.0, while 0 indicates no correlation, and +1.0 indicates a perfectly positive correlation.

In National 4 Lifeskills Maths learn to graphically demonstrate the correlation between data sets and use a ‘line of best fit’ to further the given data.