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9th CBSE
IMPORTANT
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Find the mean of the first seven multiples of 4.

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Important Questions on Statistics

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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 14 - Statistics>Very Short Answer Questions>Q 5
If the mean of 8 given numbers is 35, then find their sum.
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 14 - Statistics>Very Short Answer Questions>Q 6
If the mean of the prime factors of 24 is k, find k in a decimal number.
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 14 - Statistics>Very Short Answer Questions>Q 8
If the mean of 3, 5, 0, 9, x, 7 and 13 is 7, then find the value of x.
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 14 - Statistics>Very Short Answer Questions>Q 9
The mean of 8 observations is 25. If an observation 18 is removed, then find the mean of the remaining observations.
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 14 - Statistics>Very Short Answer Questions>Q 10
If the mean of six observations is 10.5 and five of them are 13, 5, 7, 9 and 14, then find the sixth observation.
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 14 - Statistics>Objective Questions>Q 1
The information collected by the investigator herself or himself is called _____ data.
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 14 - Statistics>Objective Questions>Q 1
The information gathered from a source which already had the information stored is called _____ data.
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 14 - Statistics>Objective Questions>Q 1
A quantity which is being measured in an experiment or survey is called a _____.