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# Elements of Statistics B.COM SOLVED ASSIGNMENT 2016 (Code: ECO – 07)

B.COM SOLVED ASSIGNMENT HELP 2016-17

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Product Name:            Elements of Statistics

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Edition Description:   2016-17

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TUTOR MARKED ASSIGNMENT
Course Code : ECO - 07
Course Title : Elements of Statistics
Assignment Code : ECO – 07/TMA/2015-16
Coverage : All Blocks
Maximum Marks: 100
Attempt all the questions.

1. Define ‘Classification’. Explain the purpose and methods of classification of data giving suitable examples.

2. “Statistical methods are most dangerous tools in the hands of the inexpert.” Explain the significance of this statement.

3. Find out missing frequencies in the following incomplete distribution:

The values of Median and Mode are 27 and 26 respectively.

4. The arithmetic mean and the standard deviation of a series of 20 items are 20 cms. and 5 cms. respectively. But while calculating them, an item 13 misread as 30. Find the correct mean and correct standard deviation.

5. Calculate Karl Pearson’s coefficient of skewness from the following data

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