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(SQL) You need to JOIN 2 tables together, TA, TB, in such a way that you get every raw of TA at least once at the result, which JOIN is that ? (ML): need to train a supervised learning model , but you have only a small amount of data. Which technique to use, to both train and evaluate performance of the model?
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Data Scientist

Interviewed at Pearson

3.5★
Oct 5, 2016

(SQL) You need to JOIN 2 tables together, TA, TB, in such a way that you get every raw of TA at least once at the result, which JOIN is that ? (ML): need to train a supervised learning model , but you have only a small amount of data. Which technique to use, to both train and evaluate performance of the model?

(Probability) Smb has 2 kids, at least one is a girl. What is a probability that Smb has 2 girls? (General algorithm design) Describe an algorithm that will find a global maximum of a well-behaved function (means 1st, 2nd derivatives are defined) ?
avatar

Data Scientist

Interviewed at Pearson

3.5★
Oct 5, 2016

(Probability) Smb has 2 kids, at least one is a girl. What is a probability that Smb has 2 girls? (General algorithm design) Describe an algorithm that will find a global maximum of a well-behaved function (means 1st, 2nd derivatives are defined) ?

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