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What algorithm would you use to write a function for finding the longest path in a DAG?

How would you define type I and type II errors in the realm hypothesis testing? And which mistake do you think is the more serious of the two?

What are some of your main goals from the Data Scientist role at Optimizely?

Could you explain why your ideal company might be Optimizely?

What is your level of proficiency with different machine learning architectures, and which ones have you been exposed to in your prior work?

Write code that can identify the subarray of length k with the maximum sum from a given array of integers.

Characters A, B, C, D are linked such that A is linked to B, A is linked to C, C is linked to D, and B is linked to D. Can these four characters be separated into two sets such that the graph is bipartite?

How does PCA assist in uncovering patterns in data?

Precision and recall are two common metrics used to evaluate the performance of classification models. Can you explain what they measure and how they are calculated? Also, discuss some situations where these metrics may not be suitable for assessing model accuracy.

In what way do you measure the retention rate of a product?