Answer with explanation:
Number of Marbles in the bag = 3 Yellow + 4 Red Marbles + 3 Purple Marble
= 10 Marbles
Probability of an event

Probability of Drawing a Yellow Marble from the bag

Probability of Drawing a Purple ball from the bag

Probability of Drawing a Red Marble from the bag

Also, Sum of total Probability of each individual event of a sample Space
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Option B: The probability you select a purple marble is 3/10
Option C: P(Red) + P(Yellow) + P(Purple) = 1
Option D: As, there is no green marble , so probability of selecting a green marble is equal to 0.