Data Science Consultant Interview Questions

40,327 data science consultant interview questions shared by candidates

(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?
avatar

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) ?

Viewing 931 - 940 interview questions

See Interview Questions for Similar Jobs

Glassdoor has 40,327 interview questions and reports from Data science consultant interviews. Prepare for your interview. Get hired. Love your job.