Help with a predictive analytic
 

I am looking to create a fun dashboard that will tell people how often to
check their social media outlets based on the number of friends / followers
etc they have and the frequency interval of their updates. Can somebody help
me with the formula ... A1 number of friends A2 intervals between updates
(i.e. 2, 5, 60 minutes). Trying to establish an efficiency metric for going
online to various social networks based on activity. Your input is always
appreciated!