Answer-
The probability of drawing an O and a B is 0.033
Solution-
Total number of letter in the word “PROBABILITY” is 11
Total number of B in the word is 2
Total number of O in the word is 1
So, as the tiles are chosen with replacement,

Now, as two tiles are drawn, so the probability of choosing an “O” and a “B” is,

Putting the values,




