Final Answer:
The subplots that provide evidence for dependency between the random variables in the pr2_second_data_set.txt data set are:
Subplot B: Scatter plot of A vs. D
Subplot C: Scatter plot of B vs. E
Subplot D: Scatter plot of C vs. E
Step-by-step explanation:
To determine which subplots provide evidence for dependency between the random variables, we can examine the scatter plots and look for patterns or trends that suggest a relationship between the variables.
Subplot B shows a positive correlation between A and D, suggesting that as A increases, D also tends to increase. This is evident from the upward trend in the scatter plot. Similarly, Subplot C shows a positive correlation between B and E, with the scatter plot indicating a clear upward trend. Finally, Subplot D shows a positive correlation between C and E, with the scatter plot displaying a similar upward trend.
These positive correlations suggest that there is a dependency between the random variables in the data set, with each variable influencing the others. To further investigate this dependency, we can perform statistical tests such as correlation analysis or regression analysis to quantify the strength and direction of the relationships between the variables.