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Upgrade to ProYou are a Product Analyst at Lyft. The marketing team is designing a cross-sell campaign targeting riders who have experienced both economy and premium service levels. These "cross-tier" riders are valuable because they have shown willingness to pay for upgrades. Your task is to identify riders who have taken at least one economy trip AND at least one premium trip, regardless of trip outcome.
You are a Product Analyst at Lyft. The marketing team is designing a cross-sell campaign targeting riders who have experienced both economy and premium service levels. These "cross-tier" riders are valuable because they have shown willingness to pay for upgrades. Your task is to identify riders who have taken at least one economy trip AND at least one premium trip, regardless of trip outcome.