Calculating the standard deviation from a set of data.

Calculate the standard deviation. 2.31, 2.79, 3.33, 4.21, 4.22, 4.75, 5.51, 6.26, 11.57, 18.90, 20.25, 25.78, 36.88, 44.96, 77.82, 80.80, 105.80, 151.95

In your response, please explain how to calculate the standard deviation and how to interpret the final value.

What is the range and standard deviation for the following data: 2, 6, 15, 9, 11, 22, 1, 4, 8, 19

Mean = 24...... std dev =25..... meaning of data?

Sixteen retail outlets were surveyed to find the cost of a window chiller. The results are 280,310,265,298,285,325,360,340,260,275,295,280,355,295 and 355. find the midrange find the value corresponding to P50 find the first quartile (in dollars) find the mean find the unbiased standard deviation what is th z-score,

Question: A portfolio is made up of 75% of stock 1, and 25% of stock 2. Stock 1 has a variance of .08, and stock 2 has a variance of .035. The covariance between the stocks is -.001. Calculate both the variance and the standard deviation of the portfolio.

X P(X=x) (5 @ .12) (6 @ .24) (8 @ .44) (10 @ .20) What is the standard deviation of X?

Problem 1: Calculating sample mean, sample variance and sample standard deviation 7 8 7 8 8 11 7 9 10 12 9 10 12 10 10 9 8 11 11 11 9 9 12 10 11 10 The table above gives the shoes sizes of 26 members of a football club. Tasks: - Enter the data into column A in an Excel sheet. Use the first rows for titles/description

Calculate s2 and s. Marketing Graduate: GPA, X: Starting Salary, Y (Thousands of Dollars): 1 3.26 33.8 2 2.6 29.8 3 3.35 33.5 4 2.86 30.4