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A marble bag has four marbles. One is green, one is red, one is blue, and one is yellow. Which of these is a simple event?
A. Drawing a blue marble.
B. Drawing a green marble, replacing it, then drawing a red marble.
C. Drawing a green marble, then, without replacing it, drawing a red marble.
D. Drawing a green marble, replacing it, then drawing either a blue or a red marble.

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anubhav1
A. Drawing a blue marble.

Answer with explanation:

Number of Marbles in the bag =4 Marbles(Green +Red+Blue +Yellow)

An Event is said to be Simple, if While Performing the experiment,there is only one Possible Outcome. It can be Denoted by P(E),P(O),or by any other notation.And the Probability of each outcome lies between 0 and 1.

Here there are four Simple Events

1. Drawing a Green Marble From the Bag.

2. Drawing a Red Marble From the Bag.

3. Drawing a Blue Marble From the Bag.

4. Drawing a Yellow Marble From the Bag.

Option A: Drawing a blue marble, is Simple Event.

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