Facebook DS onsite 求建议！顺便发个phone interview question攒人品# DataSciences - 数据科学
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要去FB onsite Analytics的data scientist职位，然后跟HR聊了一下面试的format，
跟前面tinyapple说的类似，有
- 2轮analysis，是product related，考察product sense和分析能力
- 1轮 math/probability
- 1轮 technical analysis，需要用SQL，answer一些问题
- 1轮custom 面试，可以选择SQL ETL或者software engineering的考察coding的
每一轮都是30分钟，感觉时间很紧
我想请问大家怎么准备analysis的面试，因为从来没接触过social media公司的数据，
感觉很难有那方面的product sense，所以很怕到时候没有思路。
谢谢大家！：）
分割线下面是FB phone interview我被问到的问题，希望对其他面他家DS的同学有帮助！
===============================================
1. Tell me about yourself and why facebook? Give me an example where you
analysis influenced the production decision?
2. Facebook messenger, what type of product metrics you would use?
3. Messages dropped 5% d/d, what would you look into to understand why?
4. A new filter feature for messenger, how do you know if it is a good move
or not.
5. Probability question: 52 deck cards, randomly pick 2, what’s the
probability of not the same color and not the same number
6. SQL: difference between left join, right join, full outer join and inner
join
跟前面tinyapple说的类似，有
- 2轮analysis，是product related，考察product sense和分析能力
- 1轮 math/probability
- 1轮 technical analysis，需要用SQL，answer一些问题
- 1轮custom 面试，可以选择SQL ETL或者software engineering的考察coding的
每一轮都是30分钟，感觉时间很紧
我想请问大家怎么准备analysis的面试，因为从来没接触过social media公司的数据，
感觉很难有那方面的product sense，所以很怕到时候没有思路。
谢谢大家！：）
分割线下面是FB phone interview我被问到的问题，希望对其他面他家DS的同学有帮助！
===============================================
1. Tell me about yourself and why facebook? Give me an example where you
analysis influenced the production decision?
2. Facebook messenger, what type of product metrics you would use?
3. Messages dropped 5% d/d, what would you look into to understand why?
4. A new filter feature for messenger, how do you know if it is a good move
or not.
5. Probability question: 52 deck cards, randomly pick 2, what’s the
probability of not the same color and not the same number
6. SQL: difference between left join, right join, full outer join and inner
join