Answer:
There is a strong positive correlation coefficient for the relationship between data plan size 'x' and number of text messages sent 'y'
Step-by-step explanation:
In statistics, the correlation coefficient is attributed to a symbol R. Correlation Coefficient value spread over a range from -1 to +1. It shows the depth of relationship between the movement which is relative of two existing variables
From the given question;
We have the study of the relationship between the data plan size and the number of text messages sent in the U.S.
When R value is at 0 ; it illustrates and pinpoint the fact that there is no relationship between these two variables under study.
However; the R value near to +1 and -1 definitely shows the strength of the positive and negative correlation of the two variables under study.
Given that :
R = +0.97 ; we can see from above explanation that this is showing and telling us that there is a strong positive correlation coefficient for the relationship between data plan size 'x' and number of text messages sent 'y'.
Conclusion: we conclude that the large data size corresponds to the large number of text messages and the small data size corresponds to the small number of text messages.
