Question 1179549
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A ∩ B  is the set of numbers  { 1, 3, 5 }, consisting of 3 numbers.


So, the entire set of events consists of 10 elements;

of them only 3 (exactly 3) are favorable.


The probability is  P = {{{favorable/total}}} = {{{3/10}}} = 0.3 = 30%.     <U>ANSWER</U>
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Solved, answered and explained.