New issues of securities are transactions in the:

In R, which function is used to perform a t-test for comparing the means of two independent samples?

Which regex matches any single character?

In file systems, which allocation method results in the maximum random access performance?

Which of the following methods is most commonly used during data wrangling to handle missing values in a dataset?

Which of the following correctly handles multiple exceptions in Java?

In SQL, which type of JOIN will return all rows from the left table and the matching rows from the right table, filling with NULLs where there is no match?

Which of the following is the most effective data collection method for gathering real-time data from a website or application?

Which normalization form eliminates transitive dependency in relational databases?

Which sampling technique is best suited for dividing a population into distinct subgroups and ensuring each subgroup is proportionally represented?