I need help finding the standard deviation. Thank you !

heducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fnewconnect.mheducation.com%25 ente... C Home - my.centenniale - Nike Won Plagiarism Checker C Course Search Info Acct Information Sy. Intermed Week 14) i Saved The ages of a sample of Canadian tourists flying from Toronto to Hong Kong were: 45, 30, 76, 43, 63, 58, 48, 52, 64, 47 a. Compute the range. Range 33 b. Compute the mean deviation. (Round the mean deviation to 2 decimal places.) Mean deviation 10.12 c. Compute the standard deviation. (Round the standard deviation to 2 decimal places.) Standard deviation d. Using Chebyshev's theorem, at least what percentage of the observations must be within 2.6 standard deviations of the