1 We collect the ages of all of the lions in the zoo... Calculate for the following population of N = 7 scores: X = [8, 6, 5, 2, 6, 3, 5] Sum of squared deviations (SS) Population Variance ( 2) Population Standard deviation ( )

2. Let's say we're interested in the distribution of plundered gold among 100 pirates... But, we only have time to look at 10 pirates... X = [4, 2, 1, 17, 6, 20, 2, 0, 5, 3] Calculate the sample mean, the sum of squares, the sample variance, and the sample standard deviation

3. A portfolio manager is interested in how variable the performance of several stocks has been in the last fiscal year... We collect the average percentage change in each stock: X = [1, 2, 0, 3, 2, 2, 1, 1, 0, 0] Calculate the population mean, the sum of squares, the population variance, and the population standard deviation.