$2.$ The following data represent the total concentrations of polynuclear aromatic hydrocarbons $($in parts per million $$ ppm$)$ for a sample of Gulf shrimp:

$9\mathrm{.}7,13\mathrm{.}8,4\mathrm{.}4,13\mathrm{.}1,10\mathrm{.}5,10\mathrm{.}0,12\mathrm{.}3,13\mathrm{.}5,11\mathrm{.}8,15\mathrm{.}2,12\mathrm{.}2,9\mathrm{.}9,12\mathrm{.}6,8\mathrm{.}5$

a$.$ Create a variable called shrimpPAH that is a numeric vector containing the data above. Type shrimpPAH $($and press Enter$/$Return$)$ so that the data are displayed in the console