You assume the average usage is representative of the actual usage. You averaged the actions over the time period, nothing's says the users didn't performed the averaged 72 actions within the first three days or any time restricted window within the whole period of time and got bored with it seeing no or low value.
You assume the average usage is representative of the actual usage. You averaged the actions over the time period, nothing's says the users didn't performed the averaged 72 actions within the first three days or any time restricted window within the whole period of time and got bored with it seeing no or low value.