Consider the data in the matrix geneData that is constructed in Section 1.7. Its small size enables you to check your computations even with a pocket calculator. 14 (a) Use apply() to compute the standard deviation of the persons.

Why is it uncommon for users to perform searches directly in database tables? a.)users are discouraged from interacting directly with tables because they might confuse tables with spreadsheets. b.) users are discouraged from interacting directly with tables because this may result in unintended changes to source data. c.)users do not have the technical skills required to perform searches directly in database tables. d.)users do not have the permissions required to perform searches directly in database tables.