Activity-based analytics can be found on the prospect and user list views and provides you with actionable insights that apply to your segmented list. Once you've sorted and filtered your prospects or users to meet your preferred conditions, click on the graph button on the top right hand corner of the page:
If you want to split your screen so you can still see your list of prospects, click on the split screen button: 
Different graphs are found on different layouts. There are three available layouts: Email Insights, Call Insights, and Task Insights. To view this information, click on the dropdown menu found on the top of the activity-based insights layout:
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