R programming

Use the concept and procedure of the Analysis of Variance to describe the basic
practice of statistics, that is to separate effects from noise (or separate
systematic components from the random component). [Remember that statistics
is a discipline to deal with variation. If you wish, you can use an example to aid
your explanations.]
b. Provide at least three reason/factors that may give rise noise to your data

c. Briefly explain the relationships between data independence and degree of
freedom.
d. How data independence would affect your effort to separate effects from noise.