Practice · 2 of 3
Daily Sales Report with GroupBy
CHALLENGE
Difficulty: intermediate+25 XP
Produce a per-day report: "Day 1: 3 orders, avg 42.5" — average of amounts rounded to 1 decimal (MidpointRounding.AwayFromZero), days in ascending order, zero-padded to width 2.
``csharp
static List<string> DailyReport(IEnumerable<Solution.OrderLine> lines);
``
Press Submit to check your solution.
Back to lesson: Practice: LINQ Practice: Sales Analytics