In planting roses and using fertilisers, a botanist realised that the rate of growth increased and was correlated at 0.85. Interpret 0.85.
0.85 indicates a strong positive correlation between the rate of growth of roses and the use of fertilisers. This means that as the use of fertilisers increases, the rate of growth of roses also increases.
A correlation coefficient of 0.85 indicates a strong positive correlation between the rate of growth in roses and the use of fertilizers. In other words, as the amount of fertilizer used increases, there is a strong likelihood of observing a higher rate of growth in the roses.
To interpret this correlation coefficient of 0.85, it is important to understand that correlation coefficients range from -1 to +1. A correlation coefficient of +1 represents a perfect positive correlation, where the variables move in perfect alignment. On the other hand, a correlation coefficient of -1 represents a perfect negative correlation, where the variables move in exact opposite directions.
In this case, a correlation of 0.85 indicates that the variables, rate of growth and use of fertilizers, are positively related but not perfectly aligned. While the relationship is strong, there may still be some variation or other factors influencing the rate of growth in roses besides the use of fertilizers.