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CBSE Notes 2011-2012 » XI-Maths

Statistics-XI

Find the mean and variance for the following data : (i) 6, 7, 10, 12, 13, 4, 8, 12 [NCERT] (ii) 2, 4...

Short answer question

Find the mean and variance for the following data :
(i) 6, 7, 10, 12, 13, 4, 8, 12 [NCERT] (ii) 2, 4, 5, 6, 8, 17

For the frequency distribution standard deviation is 2 and arithmetic mean 15. Find the coefficient ...

Short answer question

For the frequency distribution standard deviation is 2 and arithmetic mean 15. Find the coefficient of variation.

Find the coefficient of variation for the following data : 12, 6, 7,3, 15, 10, 18, 5.

Short answer question

Find the coefficient of variation for the following data :
12, 6, 7,3, 15, 10, 18, 5.

Find the mean deviation from the median for the data : (i) 34, 66, 30, 38, 44, 50, 40, 60, 42, 51 (i...

Short answer question

Find the mean deviation from the median for the data :
(i) 34, 66, 30, 38, 44, 50, 40, 60, 42, 51 (ii) 22, 24, 30, 27, 29, 31, 25, 28, 41, 42
(iii) 38, 70, 48, 34, 63, 42, 55, 44, 53, 47

Find the standard deviation of 2, 4, 5, 6, 8, 17.

Short answer question

Find the standard deviation of 2, 4, 5, 6, 8, 17.

Find the standard deviation of the scores of 10 students. 65, 58, 67, 34, 48, 45, 70, 62, 60, 50.

Short answer question

Find the standard deviation of the scores of 10 students. 65, 58, 67, 34, 48, 45, 70, 62, 60, 50.

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