FedEx Express Decision Scientist Interview Questions and Answers

Q1. Algorithms and Projects in depth
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Q2. Math behind certain algorithms
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Q1. Usual behavioral questions
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Q1. One on one with director
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It has SAS python SQL aptitude logic

Was given a case study on how should fedex should grow inorganic or organic

Q1. Related to Machine learning and HR What is overfitting?
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Q2. What is cross validation
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Cross validation is a technique used to evaluate the performance of a machine learning model by testing it on multiple subsets of the data.
• It involves dividing the data into multiple subsets or folds.

• The model is trained on a subset and tested on the remaining subset.

• This process is repeated for all subsets and the results are averaged to get a final performance metric.

• It helps to prevent overfitting and provides a mor...read more
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Q3. What is confusion matrix
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A confusion matrix is a table used to evaluate the performance of a classification model.
• It shows the number of true positives, true negatives, false positives, and false negatives.

• It helps in calculating various evaluation metrics like accuracy, precision, recall, and F1 score.

• It is useful in comparing the performance of different models.

• Example: A confusion matrix for a binary classification problem can be represente...read more
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