Question

Find the probability of touching the following letters of the word 'PROBABILITY by
closing the eyes.
(i) touching 'P'
(ii) touching 'B'
(iii) touching 'T'
(iv) not touching 'R' (v) not touching ‘A’
(vi) not touching 'B'​

Answer 1

Total no. of outcomes = 11

P(E) = No. of favourable outcomes/ Total no. of outcomes

i) P(touching P) = 1/11

ii) P(touching B) = 2/11

iii) P(touching T) = 1/11

iv) P(not touching R and not touching A) (11-2)/11 = 9/11

v) P ( not touching B) = (11-2)/11 = 9/11