If $\mathrm { P } ( \mathrm { A } ) = 0.25 , \mathrm { P } ( \mathrm { B } ) = 0.8$

Essay

If $\mathrm { P } ( \mathrm { A } ) = 0.25 , \mathrm { P } ( \mathrm { B } ) = 0.8$ , and $\mathrm { P } ( \mathrm { A } \& \mathrm {~B} ) = 0.23$ , are $\mathrm { A }$ and $\mathrm { B }$ independent events? How can you tell?