Python sample interview question | Data Analyst Practice Problem #3
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QUESTION: What are all the unique Premier League matchups in the data set, and how many times has each matchup been played? Switching the home and away teams is NOT a unique matchup. For example, HomeTeam = 'Arsenal' and AwayTeam = 'Chelsea' is the same matchup as HomeTeam = 'Chelsea' and AwayTeam = 'Arsenal'.
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