1.924 and 5.77 step 1: find the mean by adding up all the numbers and divide the sum by the number of numbers. step 2: find the difference between each number and the mean, square the difference step 3: add up all the results of step 2, divide the sum by (n-1), n is the number of numbers. step 4: square root the result of step 3.
21 full tables because if you divide the amount of plates you have by the amount of plates needed for each table you’ll get 21.5 but they asked for full tables so that would be 21
