The segments are made on hit level but still i am seeing a lot of other segments dragged in this breakdown.

Hi Good Day, I have created a segment with four specific activity from target in adobe analytics workspace , but when we do a  breakdown with activity , we are getting a lot more activity instead of this four , Eventually the segment holds only four activity in the segment build , but while breaking...

Occurrences / Visits / Visitors / Page Views Please help me out with a clear definitions on these metrics a bit confused on this recently. As few of these are similar ones to use as well 

what would be best to includes when we are creating a segment hit / visit / visitor and also what is the best metrics to see the interactions on site ( occurrences / visits , unique visitor )

when adobe target activity experience is broken down with page URL Dimensions, i can see multiple url and pages which is not part of that activity experiences.do we have an answer on this a why the url and pages which is not related to the activity gets data on the dashboards