Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • An electronic assembly consists of two subsystems, say ,A and B. From previous testing procedures, the following probabilities are assumed to be known: (ii) P (A fails alone)

Q. 15  An electronic assembly consists of two subsystems, say, A and B. From previous testing procedures, the following probabilities are assumed to be known:

               P(A fails) = 0.2

               P(B fails alone) = 0.15

                P(A and B fail) = 0.15

               Evaluate the following probabilities

                (ii) P(A\; fails \; alone)

Answers (1)

best_answer

Let event in which A fails and B fails be E_A,E_B

           P(E_A)=0.2

P(E_A\, and \, E_B)=0.15

P(B\, fails\, alone)=P(E_B)-P(E_A\, and\, E_B)

\Rightarrow \, \, \, 0.15=P(E_B)-0.15

\Rightarrow \, \, \, P(E_B)=0.3

             P(A\, fails\, \, alone)=P(E_A)-P(E_A\, and\, E_B)

                                                    =0.2-0.15=0.05                      

Posted by

seema garhwal

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

CBSE board exams 2025 from February 15; Class 10, 12 subject-wise marks distribution
anam-khan

CBSE Date Sheet 2025: Class 10, 12 board exam dates soon on cbse.gov.in; previous trends, sample papers
anam-khan

CBSE Board Exams 2025: 75% attendance must for students to be eligible, reiterates board

Latest Question