Graph Theory

The problem requires calculating the moving average for a period of 3 weeks based on the given data. The moving average helps in smoothing out fluctuations and identifying trends.

Week
Calls (in thousands)

Steps:

1. Calculate the 3-week moving averages:
   • Week 2-4:
     
   • Week 3-5:
     
   • Week 4-6:
     

The moving averages for three periods are 111, 109, and 136 respectively. Based on these values, the correct graph is represented by the option with the average values plotted against their respective weeks, showing smoother fluctuation trends. The correct image option is the one reflecting these average points.