??? What would you rather​

There are six red marbles 4 blue marbles and 15 green marbles in a jar if you reach in and randomly draw one what is the probability that it will choose a red marble

How can behavioral science be applied in improving public health? a. by tracking a disease to determine its sourceb. by creating promotions that improve health habitscboth by tracking a disease to determine its source and by creating promotions that improve health habitsd. neither by tracking a disease to determine its source or by creating promotions that improve health habits

Which of the following statements is true?