What is the probability that from 13 to 15 fans arrive between 7:15 and 7:16 P.M.?

The haircut you get in January is different from the haircut you get in June. Which characteristic of services best describes this event?

A) intangibility B) tangibility C) nonstandardization D) inseparability

The process of granting an authorized user permissions on database objects is:

A) Authorization B) Authentication C) Permission D) Role