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Questions:

1. Define the word 'Statistics' as singular and plural senses.
2. What do you understand by measure of central tendency?
3. Write the relation between arithmetic mean, median and mode.
4. Find the mode of the given data set: 3, 3, 6, 9, 15, 15, 15, 27, 27, 37, 50.
5. Write the difference between sample survey and census survey.
6. Write the properties of a good measure of dispersion.
7. Explain Chi-square test of independence of attributes.
8. Write the difference between simple random sampling with and without replacement.
9. Define regression and explain why there are two regression lines.
10. Explain the various measures of dispersion and give their merits, demerits and uses.
11. Obtain the mean, mode and median of the given data.
12. Explain the Chi-square test for independence of attributes.
13. Solve the equations of two regression lines obtained in a correlation analysis and calculate regression coefficients, correlation coefficient, and mean values.