The probability of drawing an O on the first draw is 2/6 (as there are 2 O's in the word SCHOOL and a total of 6 letters).
Since the first piece is not replaced, there is now 1 O left and 5 total letters.
Therefore, the probability of drawing an O on the second draw, given that an O was already drawn on the first draw, is 1/5.
Multiplying the probabilities of both events happening (2/6 * 1/5) gives us 2/30, which simplifies to 1/15.
Therefore, the answer is 1 over 15.
Krishna puts the letters of the word SCHOOL on pieces of paper and puts the pieces in a bag. He draws two letters without looking. The first piece of paper is NOT REPLACED before the second piece is drawn. What is the probability that Krishna draws an O twice?
(1 point)
1 over 18
1 over 15
1 over 36
2 over 15
1 answer