Un-Answered Questions { Data Science }

How do you handle missing values in python or r?

97


What is a document database?

176


Define a sql query? How do you use sql in sas, python, r languages?

118


Why do you need a for loop? How do you do for loops in python and r?

119


What is random forests and how is it different from decision trees?

91


What is a z test?

115


Why do you need a for loop?

104


How would churn help predict and control churn for a customer?

93


Where linear optimization is used?

95


What is an api? What are apis used for?

109


What is logistic and linear regression? Name some packages in r and python for building regression models.

104


What is t test?

100


What is the travelling salesman problem?

102


Define a sql query? What is the difference between select and update query?

126


what is json and what is xml?

106