Question 1130287
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(a)  According to the general formula of the Probability theory,


         P(V U M) = P(V) + P(M) - P(V & M) = 0.68 + 0.21 - 0.03 = 0.86.     <U>ANSWER</U>



(b)  According to the general definition of the Probability theory, the events  V  and  M  are independent IF AND ONLY IF  


        P(V & M) = P(V) * P(M).


     In our case IT IS NOT SO ==============>  therefore, the events  V  and  M  are NOT INDEPENDENT.
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Solved, answered, explained and completed.