A bag contains three red marbles and eight blue marbles. Your randomly pick a marbles and then pick a second marble without returning the marbles to the bag. What is the probability that the first marble is red and the second marble is blue?





help me please

 May 5, 2021

Im not sure about this but 

Probability of picking a first red marble is 3/11 since there are 3 red marbles in a total of 11 marbles.


Probability of picking a second red (without replacement) is 2/10 (or 1/5) since there are 2 red marbles left in a total of 10 marbles left


Probability of the 2 events happening in succession is (3/11 * 2/10) * 100 = 5.5%

 May 5, 2021

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