Robinhood数据相关面经_Robinhood数据相关面试真题及高频题

1.Interpreting Results of New Early Morning Reminder Feature & Feature Selection Considerations

2.Probability of Fraud in Different Types of Trades

3.Conditional probability

4.Add feature and measure impact

5.AB Test

6.Simpson paradox

7.ML model basic theory

8.AB Test

9.Model evaluation

10.Model regularization

11.Logistic regression

12.Flight ticket and seat

13.Experiment design

14.Classification model

15.ML model basic theory

16.SQL query

17.Design survey

18.Product case

19.Experiment design

20.Probability

21.Launch new feature

22.SQL query

23.Profit loss

24.Stats significant

25.Imbalance data

26.R/Python Basic Modeling

27.Hypothesis testing

28.Probability

29.Probability

30.Probability

31.Stock Price Interval Output

32.Order Matching and Profit Calculation

33.Referral Count Coding Problem

34.Course Schedule Ordering

35.Find Common Courses

36.Board Game Teleportation Possibility Check

37.Board Game Teleportation Outcomes

1. Interpreting Results of New Early Morning Reminder Feature & Feature Selection Considerations

一个新的feature（在早市开盘时给用户发提醒）带来了如下结果该怎么解释。需要明白ab test如果要看多个feature的话会有什么问题，以及如何选择。最后还问你会额外选择看哪些feature要求写一段简答来Justify

2. Probability of Fraud in Different Types of Trades

70%的trade是A,其中1%是fraud；20%是B,其中3%是fraud；10%是C,其中7%是fraud.
问：
1. 一个fraud是A的概率
2. 随机选择一个trade是fraud的概率 3. given随机选一对trad之中有至少一个fraud，这一对两个都是fraud的概率。

3. Conditional probability

说70%的trade是A,其中1%是fraud。

20%是B,其中3%是fraud。

10%是C,其中7%是fraud.

问：1. 一个fraud是A的概率 0.3

2. 随机选择一个trade正好是fraud的概率.

3. given随机选一对trad之中有至少一个fraud，这一对两个都是fraud的概率。

4. Add feature and measure impact

一个音乐软件想加一个feature，你怎么知道这个feature好不好，有啥impact？

5. AB Test

两个UI，一个buy by share, 一个buy by dollar，问你直觉哪个好，做AB test看什么metric。