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Class mark of a particular class is 9.5 and the class size is 6, then the class interval is
- a)15.5-27.5
- b)12.5-18.5
- c)3.5-15.5
- d)6.5-12.5
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Class mark of a particular class is 9.5 and the class size is 6, then ...
Class mark = 9.5
=> Upper limit + Lower limit / 2 = 9.5
=> u + l = 19 -------(1)
Class mark = 6
=> u - l = 6 --------(2)
On adding equation 1 and 2, we get
2u = 25
=> u = 12.5
l = 6.5
Class interval is ( 6.5 - 12.5)
Most Upvoted Answer
Class mark of a particular class is 9.5 and the class size is 6, then ...
Finding the Class Interval for a Given Class Mark and Class Size
Given a class mark and a class size, we can find the class interval by using the following formula:
Class interval = (class mark + class mark difference/2) to (class mark - class mark difference/2)
where class mark difference = (upper class limit - lower class limit)
Steps to Find the Class Interval for the Given Class Mark and Class Size
1. Identify the class mark and class size given in the question.
Given: Class mark = 9.5, Class size = 6
2. Determine the class mark difference by assuming a suitable class width.
Let us assume a class width of 2. Therefore, the class mark difference would be:
Class mark difference = 2
3. Calculate the upper and lower class limits for the given class mark.
Since the class mark lies in the middle of the class interval, we can use the formula:
Upper class limit = class mark + (class width/2) = 9.5 + 1 = 10.5
Lower class limit = class mark - (class width/2) = 9.5 - 1 = 8.5
4. Substitute the values of class mark, class mark difference, upper class limit, and lower class limit in the formula for class interval.
Class interval = (class mark + class mark difference/2) to (class mark - class mark difference/2)
Class interval = (9.5 + 1)/2 to (9.5 - 1)/2
Class interval = 5.75 to 7.25
5. Check if the class interval is correct by verifying if the given class mark lies within the calculated class interval.
9.5 lies within the class interval of 5.75 to 7.25, which confirms that the class interval is correct.
Therefore, the class interval for the given class mark and class size is 5.75-7.25, which corresponds to option 'D' in the given question.
Given a class mark and a class size, we can find the class interval by using the following formula:
Class interval = (class mark + class mark difference/2) to (class mark - class mark difference/2)
where class mark difference = (upper class limit - lower class limit)
Steps to Find the Class Interval for the Given Class Mark and Class Size
1. Identify the class mark and class size given in the question.
Given: Class mark = 9.5, Class size = 6
2. Determine the class mark difference by assuming a suitable class width.
Let us assume a class width of 2. Therefore, the class mark difference would be:
Class mark difference = 2
3. Calculate the upper and lower class limits for the given class mark.
Since the class mark lies in the middle of the class interval, we can use the formula:
Upper class limit = class mark + (class width/2) = 9.5 + 1 = 10.5
Lower class limit = class mark - (class width/2) = 9.5 - 1 = 8.5
4. Substitute the values of class mark, class mark difference, upper class limit, and lower class limit in the formula for class interval.
Class interval = (class mark + class mark difference/2) to (class mark - class mark difference/2)
Class interval = (9.5 + 1)/2 to (9.5 - 1)/2
Class interval = 5.75 to 7.25
5. Check if the class interval is correct by verifying if the given class mark lies within the calculated class interval.
9.5 lies within the class interval of 5.75 to 7.25, which confirms that the class interval is correct.
Therefore, the class interval for the given class mark and class size is 5.75-7.25, which corresponds to option 'D' in the given question.
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Community Answer
Class mark of a particular class is 9.5 and the class size is 6, then ...
6.5-12.5,Option D.
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Class mark of a particular class is 9.5 and the class size is 6, then the class interval isa)15.5-27.5b)12.5-18.5c)3.5-15.5d)6.5-12.5Correct answer is option 'D'. Can you explain this answer?
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Class mark of a particular class is 9.5 and the class size is 6, then the class interval isa)15.5-27.5b)12.5-18.5c)3.5-15.5d)6.5-12.5Correct answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Class mark of a particular class is 9.5 and the class size is 6, then the class interval isa)15.5-27.5b)12.5-18.5c)3.5-15.5d)6.5-12.5Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Class mark of a particular class is 9.5 and the class size is 6, then the class interval isa)15.5-27.5b)12.5-18.5c)3.5-15.5d)6.5-12.5Correct answer is option 'D'. Can you explain this answer?.
Class mark of a particular class is 9.5 and the class size is 6, then the class interval isa)15.5-27.5b)12.5-18.5c)3.5-15.5d)6.5-12.5Correct answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Class mark of a particular class is 9.5 and the class size is 6, then the class interval isa)15.5-27.5b)12.5-18.5c)3.5-15.5d)6.5-12.5Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Class mark of a particular class is 9.5 and the class size is 6, then the class interval isa)15.5-27.5b)12.5-18.5c)3.5-15.5d)6.5-12.5Correct answer is option 'D'. Can you explain this answer?.
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Class mark of a particular class is 9.5 and the class size is 6, then the class interval isa)15.5-27.5b)12.5-18.5c)3.5-15.5d)6.5-12.5Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Class mark of a particular class is 9.5 and the class size is 6, then the class interval isa)15.5-27.5b)12.5-18.5c)3.5-15.5d)6.5-12.5Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Class mark of a particular class is 9.5 and the class size is 6, then the class interval isa)15.5-27.5b)12.5-18.5c)3.5-15.5d)6.5-12.5Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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