Which of the Following About SQL Is Incorrect

question 10

Multiple Choice

Which of the following about SQL is incorrect?

• A)SQL is a language designed to query data in a relational database.
• B)SQL is based on relational algebra and allows a user to query and update the database.
• C)SQL uses the PIVOT function to insert data.
• D)SQL uses SELECT statement to tell the query which columns (or attributes)of a table should be included in the query.

---

Definitions:

T

Often refers to a t-score, used in various statistical analyses to compare two means and determine if they significantly differ from each other.

Cohen's d

A measure of the size of an effect, expressed as the difference between two means divided by the standard deviation, used in power analysis and meta-analysis.

Difference Between Two Groups

The comparison of two sets of data to identify distinctions in their measures of central tendency, variability, or other statistics.

T Test

The T test is a statistical analysis used to compare the means of two groups to determine if there are statistically significant differences between them.