CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Tags:

Articles

Discussions
Submit Discussion
bharat

· started a discussion

· 1 Months ago

Answer should be 1/2 (Question: 115996.0 )

probability at least 1 passes = 1 - Probability both fails
= 1 - 2/3*3/4
= 1- 1/2 = 1/2

Question:

The probability of A passing an exam is \(\cfrac{1}{3}\) and that of B passing the exam is \(\cfrac{1}{4}\). What is the probability that at least one of them passes the exam?

Options:
A) \(\cfrac{1}{12}\)
B) \(\cfrac{7}{12}\)
C) \(\cfrac{1}{2}\)
D) \(\cfrac{1}{3}\)
E) \(\cfrac{5}{12}\)
Solution:
Ans: (c) 

probability that at least one of them passes the exam = 1-(None is passed) = 1 - {(2/3)(3/4)} = 1-(1/2) = 1/2

Knowledge Expert

· commented

· 1 Months ago

option(c) is correct...
-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions