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补一下两周前面试内容，分享给地里小伙伴，求大米大米~~
1. python（面试官给一段程序，让你说出程序意义和输出内容）
一道用for返回最大值的index的
一道计算二维矩阵对角线值求和的
一道通过dictionary统计词频的
2. linear algebra
Meaning and the difference between eigenvalue and eigenvector.
Given two equations, A*V1 = B and A*V2 = B. (A is a matrix, B is a vector， V1 and V2 are two solutions), are there any additional solutions and write five of them.
If A^2 = B^2, can we say A = B or A = -B (Matrix)
3. statistics
The meaning of percentile
Type I error and type II error
What is the meaning of covariance coefficient? 在我说完covariance coefficient is bounded to[-1,1]后，追问Is covariance bounded?
Non-tech question:
Why MSAN and your personal goal after graduation.
祝大家申请顺利~
1. python（面试官给一段程序，让你说出程序意义和输出内容）
一道用for返回最大值的index的
一道计算二维矩阵对角线值求和的
一道通过dictionary统计词频的
2. linear algebra
Meaning and the difference between eigenvalue and eigenvector.
Given two equations, A*V1 = B and A*V2 = B. (A is a matrix, B is a vector， V1 and V2 are two solutions), are there any additional solutions and write five of them.
If A^2 = B^2, can we say A = B or A = -B (Matrix)
3. statistics
The meaning of percentile
Type I error and type II error
What is the meaning of covariance coefficient? 在我说完covariance coefficient is bounded to[-1,1]后，追问Is covariance bounded?
Non-tech question:
Why MSAN and your personal goal after graduation.
祝大家申请顺利~
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