How many people are following each sports category?
How many basketball players are following football players? Product
We have a team that works on internal troubleshooting cases from clients. Assume that the reps prioritize cases based on a first come first served model and that you would now be responsible for prioritizing cases. How would you build a ranking system to prioritize cases?
Onsite
四轮
产品:如何区分在地商家
产品:SGB 收入下降你该怎么办?
SQL:满基本的各种 join 和算 histogram,主要是要注意 edge cases
Statistics:三个 AB Testing 的 CI 怎么解读?Bais-Variance Tradeoff 解释。
想问一下ab testing应该用one-sided testing还是two-sided testing?比如我们希望一个新feature可以增加用户timespent
比如
h0: timespent/dau in control = timespent/dau in experiment group
还是
h0: timespent/dau in control <= timespent/dau in experiment group. 1point3acres
如果是oneside的话,alpah还应该说5还是2.5%呢
一般two side 5%是default。答的时候可以补充一句one side,让面试官感觉你知道这两个的区别。