Published by:
CGP EDU Academic Team
Published on: August 13, 2026
An electric instrument consists of two units. Each unit must function independently for the instrument to operate. The probability that the first unit functions is 0.9 and that of the second unit is 0.8 . The instrument is switched on and it fails to operate. If the probability that only the first unit failed and second unit is functioning is p, then 
is equal to
Text Solution
Verified by ExpertsThe correct answer is:
28
(28) 
first unit is functioning
second unit is functioning
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