Using the attached information WITHOUT excel and showing your work, PLEASE help me with the 2 following questions. This relates to my Biochemistry class. Standard Deviation assistance requested. Thank you! :)

1.Determine the average number of toilet paper rolls for Fall 2020 and Spring 2022 students and calculate the standard deviation of each semester using the Standard deviation equation .Please be sure to show your work. 2.Which group had a higher mean number of rolls of toilet paper? Which value had the most variability? Referring to the equation, how could you decrease the amount of variability in the mean? Did you find the variation surprising or unexpected?

The numbers that you see for the toilet paper rolls for the fall 2021 and spring 2022 semester are noted in the photo. In spring of 2022 please disregard student 19 and student 24. Simply, use the standard deviation equation to answer question one and I am a bit lost in totality with question 2

. Your help would be greatly appreciated!