Paypal Statistics & Math Interview Questions
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PayPal
Medium
Data ScientistOptimize thresholds under fraud costs
Cost-sensitive Thresholding for Fraud (ATO) Classifier Context You are evaluating a binary classifier for account takeover (ATO) fraud on a large vali...
Statistics & Math
0
0
Oct 13, 2025
PayPal
Easy
Data ScientistCalculate Probability of Heads in Coin Flip Experiment
Coin Flips: Counting and Binomial Probabilities Context Assume 10 independent flips of a fair coin (probability of heads p = 0.5 for each flip). Each ...
Statistics & Math
0
0
Aug 4, 2025