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I have a string “contact@dezyre.com”. Which string function can be used to split the string into two different strings “contact@dezyre” and “com” ?
357A test has a true positive rate of 100% and false positive rate of 5%. There is a population with a 1/1000 rate of having the condition the test identifies. Considering a positive test, what is the probability of having that condition?
559Post New Data Science Questions
Can you explain root cause analysis?
Explain the term "data warehouse".
Why is DBSCAN required?
Why do you want to work at this company as a data scientist?
What is the importance of having a selection bias?
What is nosql? Name some examples of nosql databases. What is a key value store? What is column storage? What is a document database?
What is a z test?
You are creating a report for user content uploads every month and observe a sudden increase in the number of upload for the month of November. The increase in uploads is particularly in image uploads. What do you think will be the cause for this and how will you test this sudden spike?
Explain the difference between data science and data analytics?
What assumptions does linear regression machine learning algorithm make?
Explain the decision tree algorithm, and how is it different from the random forest algorithm?
What are disadvantages of bootstrap development?
A box has 12 red cards and 12 black cards. Another box has 24 red cards and 24 black cards. You want to draw two cards at random from one of the two boxes, which box has a higher probability of getting cards of same colour and why?
What is the supervised learning?
Explain the goal of a/b testing?
