Author: Khan Academy via YouTube
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Code along with a software engineer in this worked example using lists. Apply list iteration to analyze daily screen time usage across different apps. Define functions with list parameters to count the total number of active minutes and the total number of distinct phone sessions.

View the program used in this video at: https://www.khanacademy.org/python-program/screen-time-lists-program-design/5111855196520448

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Course link: https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:automating-tasks-with-lists
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TIMESTAMPS:
00:00 : monitoring screen time
00:34 : data format
00:58 : count minutes function
01:53 : smaller test cases
02:21 : excluding work apps
02:59 : count sessions function
03:41 : first and last session test cases
04:37 : average session length function
05:00 : zero division error
05:24 : final data analysis

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