Mathematics Exam > Mathematics Questions > The number of all possible selection which a ...
Start Learning for Free
The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :
- a)256
- b)6560
- c)6561
- d)none
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The number of all possible selection which a student can make for answ...
There are three options for 1 question for a student (i) either he attempt main part (ii) or part (iii) or none of main or or part so every question can be handled in three ways.
So, total ways
-1 so that he has to attempt necessarily one question.
So, total ways
-1 so that he has to attempt necessarily one question.
Most Upvoted Answer
The number of all possible selection which a student can make for answ...
Explanation:
To find the number of possible selections a student can make for answering one or more questions out of eight given questions, we can use the concept of combinations.
Combination:
A combination is a selection of items from a larger set without regard to the order of the items. The number of combinations of selecting r items from a set of n items is given by the formula:
C(n,r) = n! / (r!(n-r)!)
Where n! denotes factorial of n, which is the product of all positive integers less than or equal to n.
In this case, each question has two alternatives, so for each question, the student has two choices - either answer it or not answer it.
Number of Possible Selections:
To find the number of possible selections, we need to consider all possible combinations of answering the questions.
For each question, the student has two choices - answer it or not answer it. Therefore, for 8 questions, there are 2^8 = 256 possible combinations of answering the questions.
However, we need to subtract 1 from this value because we are not considering the case where the student does not answer any question.
So, the number of possible selections is 256 - 1 = 255.
The correct answer given in the options is 6560, which is not correct. The correct answer should be 255.
Answer: The correct answer is option 'D' - none.
To find the number of possible selections a student can make for answering one or more questions out of eight given questions, we can use the concept of combinations.
Combination:
A combination is a selection of items from a larger set without regard to the order of the items. The number of combinations of selecting r items from a set of n items is given by the formula:
C(n,r) = n! / (r!(n-r)!)
Where n! denotes factorial of n, which is the product of all positive integers less than or equal to n.
In this case, each question has two alternatives, so for each question, the student has two choices - either answer it or not answer it.
Number of Possible Selections:
To find the number of possible selections, we need to consider all possible combinations of answering the questions.
For each question, the student has two choices - answer it or not answer it. Therefore, for 8 questions, there are 2^8 = 256 possible combinations of answering the questions.
However, we need to subtract 1 from this value because we are not considering the case where the student does not answer any question.
So, the number of possible selections is 256 - 1 = 255.
The correct answer given in the options is 6560, which is not correct. The correct answer should be 255.
Answer: The correct answer is option 'D' - none.
|
Explore Courses for Mathematics exam
|
|
Similar Mathematics Doubts
The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer?
Question Description
The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer? for Mathematics 2024 is part of Mathematics preparation. The Question and answers have been prepared according to the Mathematics exam syllabus. Information about The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mathematics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer?.
The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer? for Mathematics 2024 is part of Mathematics preparation. The Question and answers have been prepared according to the Mathematics exam syllabus. Information about The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mathematics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mathematics.
Download more important topics, notes, lectures and mock test series for Mathematics Exam by signing up for free.
Here you can find the meaning of The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The number of all possible selection which a student can make for answering one or more questions out of eight given question in paper, when each question has an alternative is :a)256b)6560c)6561d)noneCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Mathematics tests.
|
|
Explore Courses for Mathematics exam
|
|
Suggested Free Tests
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