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)
1/18
1/36
1/15
2/15
In order to calculate the probability of drawing an O twice, we need to consider the total number of ways that two letters can be drawn from the bag without replacement.
Total number of ways to draw 2 letters from 5 letters (S, C, H, O, L) without replacement = 5C2 = 10
Number of ways to draw two O's = 1 (since there is only 1 O in the bag)
Probability of drawing an O twice = Number of ways to draw two O's / Total number of ways to draw 2 letters
= 1 / 10
= 1/10
Therefore, the probability that Krishna draws an O twice is 1/10.