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If the points of inflexion of a normal curve are 40 and 60 respectively, then its mean deviation is
- a)50
- b)45
- c)40
- d)60
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
If the points of inflexion of a normal curve are 40 and 60 respectivel...
Points of inflexion of a normal curve = Mean ± Standard Deviation
Therefore, The mean is 50 and the standard deviation is 10.
Most Upvoted Answer
If the points of inflexion of a normal curve are 40 and 60 respectivel...
Mean is 50 & standard deviation is 10 . But we have find mean deviation. Formula of mean deviation =0.8 standard deviation . The final answer of this question is 8
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Community Answer
If the points of inflexion of a normal curve are 40 and 60 respectivel...
Given Information:
- Points of inflexion of a normal curve are 40 and 60 respectively.
To find:
- Mean deviation of the normal curve.
Solution:
- The mean deviation of a normal curve is equal to its standard deviation.
- Points of inflexion of a normal curve are located at a distance of one standard deviation from the mean on either side.
- Therefore, the distance between the two points of inflexion is equal to two standard deviations.
Let us assume that the mean of the normal curve is 'm' and its standard deviation is 's'. Then, we have:
- 60 - m = s
- m - 40 = s
Adding these two equations, we get:
- 60 - 40 = 2s
- s = 10
Therefore, the mean deviation of the normal curve is equal to its standard deviation, which is 10.
Hence, the correct option is (A) 50.
- Points of inflexion of a normal curve are 40 and 60 respectively.
To find:
- Mean deviation of the normal curve.
Solution:
- The mean deviation of a normal curve is equal to its standard deviation.
- Points of inflexion of a normal curve are located at a distance of one standard deviation from the mean on either side.
- Therefore, the distance between the two points of inflexion is equal to two standard deviations.
Let us assume that the mean of the normal curve is 'm' and its standard deviation is 's'. Then, we have:
- 60 - m = s
- m - 40 = s
Adding these two equations, we get:
- 60 - 40 = 2s
- s = 10
Therefore, the mean deviation of the normal curve is equal to its standard deviation, which is 10.
Hence, the correct option is (A) 50.
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If the points of inflexion of a normal curve are 40 and 60 respectively, then its mean deviation isa)50b)45c)40d)60Correct answer is option 'A'. Can you explain this answer?
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If the points of inflexion of a normal curve are 40 and 60 respectively, then its mean deviation isa)50b)45c)40d)60Correct answer is option 'A'. Can you explain this answer? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about If the points of inflexion of a normal curve are 40 and 60 respectively, then its mean deviation isa)50b)45c)40d)60Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the points of inflexion of a normal curve are 40 and 60 respectively, then its mean deviation isa)50b)45c)40d)60Correct answer is option 'A'. Can you explain this answer?.
If the points of inflexion of a normal curve are 40 and 60 respectively, then its mean deviation isa)50b)45c)40d)60Correct answer is option 'A'. Can you explain this answer? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about If the points of inflexion of a normal curve are 40 and 60 respectively, then its mean deviation isa)50b)45c)40d)60Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the points of inflexion of a normal curve are 40 and 60 respectively, then its mean deviation isa)50b)45c)40d)60Correct answer is option 'A'. Can you explain this answer?.
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