Question

The letters of the word PROBABILITY are written on the paper slips and are put in a bag. If one slip is drawn without looking into bag then what is the probability that it bears the letter B?
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Answer 1

Answer:

2/11

Step-by-step explanation:

Sample Space S={P,R,O,B,A,B,I,L,I,T,Y}

Our Event E1={B,B}

P(E1)=n(E1)/n(S)

      =2/11

i.e 18%