Why does mobile sell less?

MediumAmazonfunnelsstep conversiondevicessizing· 60 XP (20 per step)

Mock interview. You're interviewing for a product analyst job on an online shop's mobile app team. The interviewer says: "Most of our traffic is on phones, but phones bring in fewer sales. Where are we losing people?" You have web_events for March 2026.

Shoppers move through four steps: view (a product page), add_to_cart, checkout and purchase. Count events at each step.

Step 1: The overall funnel

"Show March's funnel in one row: the number of events at each step, plus carts per 100 views, the checkout rate (checkouts / carts) and the purchase rate (purchases / checkouts)."

Expected output

Return: views, carts, checkouts, purchases, carts per 100 views, checkout rate and purchase rate (name the columns however you like)

  • One row; carts_per_100_views and the two rates (percentages) rounded to 1 decimal

Example of the shape (made-up values):

views carts checkouts purchases carts_per_100_views checkout_rate purchase_rate
5000 1000 700 420 20.0 70.0 60.0

Step 1 of 3

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