:Q12. You are given n = 8 measurements: 5, 4, 6, 7, 6, 7, 3, 7. Calculate the range, the _ sample mean (x), the sample variance (s^2), and standard deviation (s). (Round your variance to four decimal places and your standard deviation to two decimal places.) Compare the range and the standard deviation. The range is approximately how many standard deviations? (Round your answer to two decimal places.) standard deviat

You will be comparing two sets of data for this assignment. 1. Determine the average number of toilet paper rolls* for Fall 2022 biochemistry and genetics students (individually) and calculate the standard deviation of each using the equation. Please be sure to show your work. I know that you can easily use tools like Microsoft Excel to calculate standard deviation, but I would like to see you complete the work by hand so that you get a sense of the role of each component of the equation. Ignore students that did not provide answers (don't use those students in the mean or N value calculations). 2. Please answer the following questions when you submit your data. 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 two sets of data and the standard deviation formula pictures are attached…

Ali scores 70 on Calculus-1 course with a class mean of 68 and a standard deviation of 2, and he scores 68 on Introduction to Operating with a class average of 60 and a standard deviation of 2. In which test did he perform well? Explain

Plz explain. Ty