Question 1198158
{{{15}}}% ={{{0.15}}}  own a cat
{{{20}}}%={{{0.20}}}      own a  dog
 {{{5}}}%={{{0.05}}}     own   both

Event {{{A}}} = have a  dog
Event {{{B}}} = have a cat

Event {{{C}}} = have  both


 the probability of event{{{ B}}} is:

{{{ 0.05/0.20= 0.25}}}

or

{{{25}}}%