JEE Exam > JEE Questions > If 2/7 is the probability of an event, then t...
Start Learning for Free
If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:
- a)5/7
- b)6/7
- c)2/7
- d)3/7
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
If 2/7 is the probability of an event, then the probability of the eve...
If 2/7 is probability of event A then the probability of an event not A is 1-(2/7) i.e., probability of not A is 5/7
Most Upvoted Answer
If 2/7 is the probability of an event, then the probability of the eve...
If 2/7 is probability of event A then the probability of an event not A is 1-(2/7) i.e.,
probability of not A is 5/7
probability of not A is 5/7
Free Test
FREE
| Start Free Test |
Community Answer
If 2/7 is the probability of an event, then the probability of the eve...
To find the probability of an event not occurring, we subtract the probability of the event occurring from 1.
Given that the probability of an event A is 2/7, we can find the probability of event A not occurring by subtracting 2/7 from 1.
So, the probability of event A not occurring is 1 - 2/7 = 7/7 - 2/7 = 5/7.
Therefore, the correct answer is option A) 5/7.
Explanation:
Step 1: Understand the concept of probability
Probability is a measure of the likelihood that a particular event will occur. It is always a value between 0 and 1, where 0 represents impossibility and 1 represents certainty.
Step 2: Understand the concept of complementary events
Complementary events are two events that together cover all possible outcomes. If the probability of event A occurring is p, then the probability of event A not occurring is 1-p.
Step 3: Apply the concept to the given problem
In this problem, the probability of event A occurring is given as 2/7. Therefore, the probability of event A not occurring is 1 - 2/7.
Step 4: Simplify the expression
To subtract fractions, we need a common denominator. In this case, the denominator is already the same, so we can subtract the numerators directly.
1 - 2/7 = 7/7 - 2/7 = (7-2)/7 = 5/7
Therefore, the probability of event A not occurring is 5/7.
Step 5: Choose the correct option
Among the given options, option A) 5/7 matches the probability we calculated.
Therefore, the correct answer is option A) 5/7.
Given that the probability of an event A is 2/7, we can find the probability of event A not occurring by subtracting 2/7 from 1.
So, the probability of event A not occurring is 1 - 2/7 = 7/7 - 2/7 = 5/7.
Therefore, the correct answer is option A) 5/7.
Explanation:
Step 1: Understand the concept of probability
Probability is a measure of the likelihood that a particular event will occur. It is always a value between 0 and 1, where 0 represents impossibility and 1 represents certainty.
Step 2: Understand the concept of complementary events
Complementary events are two events that together cover all possible outcomes. If the probability of event A occurring is p, then the probability of event A not occurring is 1-p.
Step 3: Apply the concept to the given problem
In this problem, the probability of event A occurring is given as 2/7. Therefore, the probability of event A not occurring is 1 - 2/7.
Step 4: Simplify the expression
To subtract fractions, we need a common denominator. In this case, the denominator is already the same, so we can subtract the numerators directly.
1 - 2/7 = 7/7 - 2/7 = (7-2)/7 = 5/7
Therefore, the probability of event A not occurring is 5/7.
Step 5: Choose the correct option
Among the given options, option A) 5/7 matches the probability we calculated.
Therefore, the correct answer is option A) 5/7.
|
Explore Courses for JEE exam
|
|
Similar JEE Doubts
Top Courses for JEEView all
If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer?
Question Description
If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer?.
If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer?.
Solutions for If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer?, a detailed solution for If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice If 2/7 is the probability of an event, then the probability of the event ‘not A’ is:a)5/7b)6/7c)2/7d)3/7Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice JEE tests.
|
|
Explore Courses for JEE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup