El has a jar full of marbies In the jar there are 18 blue marbles, 11 red marble

Question

El has a jar full of marbies In the jar there are 18 blue marbles, 11 red marbles and 12 purple marbles She selects a marble at random from the jar. She does not replace the marble. She selects a second marble from the jar What is the probability tmat the second marble is red given that the 1st marble was not red? What s the correct nderpretation of this question? OA. Pinat red in the 2nd draw red in the 1st draw) B. Pinot red in the 1st draw red in the 2nd draw) CPired in the 2nd draw mot red in the 1st draw) D. Pired in the fst draw and red in the 2nd draw) Find the probablity that the secend marbie is red given that the 1st marble was not red probablity ound your answer to 3 decimal places

Explanation / Answer

a) This can be represented by:

P(Red in 2nd draw | Not red in the 1st draw)

Option C is correct.

b) Total marbles = 18 + 11 + 12 = 41

Red Marbles = 11

Hence,

P(Red in 2nd draw | Not red in the 1st draw) = 11/40 = 0.275

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