Hello, I need help solving this.

5. For popular destination for the newlywed of today are the Caribbean and Hawaii. A honeymoon on average, lasts 9.4 days and cost $5111. A sample of 12 newlyweds reported the following lengths of stay of their honeymoon. 5 14 7 10 6 8 12 9 10 9 7 11 a) Find n b) Compute Sum xi c) Determine the sample mean6. For the following data set 1 9 8 4 3 a) Find the range b) Sample standard deviation