Table 4. Correlation of age with features used for modeling.

	Dimension Type	Corr. Coefficient
Recharge Value	Atomic	0.06
Min Recharge Value	Derived	0.13
Calls made during P2	Derived	0.06
Percentage of days social network over-the-top applications used during P2	Derived	-0.29
Percentage of social network sessions used during P1	Derived	-0.07
Percent of received calls duration during P2	Derived	0.19
Percent of received calls duration during P4	Derived	-0.16
Percent of days where over-the-top calls were placed during P2 and P3	Derived	0.18
Percent of Internet megabytes used during the weekdays	Derived	0.11
Percentage of social network sessions used on weekends and holidays	Derived	-0.26
Whatsapp traffic (in MB) generated on weekends and holidays	Derived	-0.15