关于“从 BigQuery 数据中挖掘数据洞见：实验室挑战赛”的评价

Dhimas Prayogo P. · 已于 6 months前审核

Rizky W. · 已于 6 months前审核

JVS T. · 已于 6 months前审核

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Muhammad F. · 已于 6 months前审核

monther a. · 已于 6 months前审核

This lab is overly-specific in how the problems are addressed. For example, in task 7, it is incorrect to filter WHERE (net_new_cases/previous_day) > 0.10 but it is correct to state WHERE (net_new_cases/previous_day) * 100 > 10.0, which is an equivalent expression. There is also inconsistency in how "cumulative" is used. In task 4, cumulative is summed across days, while in tasks 1, 2, 3 and 5 it is restricted to single days. This shows two differing interpretations - is cumulative for all time forward as a monotonically increasing series, or is cumulative across all entities for a given date, and therefore not monotonically increasing?

Jeremy L. · 已于 6 months前审核

Abdelrahman S. · 已于 6 months前审核

mercedes G. · 已于 6 months前审核

Paola Andreas C. · 已于 6 months前审核