Can anyone help me solve this with steps please?

An article described an experiment in which observations on various characteristics were made using a controlled minichamber. One of the article's authors kindly supplied the accompanying data on the difference between air and soil temperatures (in Celsius) as 2, 2, 1, 2, 2, 4, 2, 1, 0, and 2. a) (5pts) Compute the mean and explain what does the mean physically explain. b) (5pts) Compute the variance and explain what does the variance physically explain. c) (10pts) Compute 10% trimmed mean and explain what does trimmed mean physically explain. d) (15pts) Draw a modified box plot and find outlier(s) using that if any