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Questions:

1. What do you mean by data?
2. Write the relation between arithmetic mean, median and mode.
3. Find the arithmetic mean of sorghum given the weights of 7 ear-heads.
4. Write the difference between sample survey and census survey.
5. Calculate the coefficient of correlation between X and Y from the given data.
6. Write the probability mass function of Binomial and Poisson distribution.
7. Compute the median of the given data.
8. Describe the properties of regression coefficient.
9. Explain various measures of central tendency and give their merits, demerits and uses.
10. Define the coefficient of correlation between two variables and discuss its properties.
11. What do you mean by Chi-square test for independence of attributes? Explain it with a suitable example.
12. Find the arithmetic mean and standard deviation of the given plant heights.
13. Write short notes on: Analysis of variance, Random Number Table, Linear regression equations.