Consider the following population of 10 numbers. 31 36 24 30 20 26 22 18 28 41 (a) Find the population mean. (b) Rich selected one sample of nine numbers from this population. The sample included the numbers 31, 36, 24, 20, 26, 22, 18, 28 and 41. Calculate the sampling mean and sampling error for this sample. (c) Refer to part (b). When Rich calculated the sample mean, she mistakenly used the numbers 31, 36, 24, 20, 26, 22, 28, 28 and 41 to calculate the sample mean. Find the sampling and nonsampling errors in this case. (d) List all samples of nine numbers (without replacement) that can be selected from this population. Calculate the sample mean and sampling error for each of these samples.

Part a what is the area of triangle i? show your calculation. part b triangles i and ii are congruent (of the same size and shape). what is the total area of triangles i and ii? show your calculation. part c what is the area of rectangle i? show your calculation. part d what is the area of rectangle ii? show your calculation. part e rectangles i and iii have the same size and shape. what is the total area of rectangles i and iii? show your calculation. part f what is the total area of all the rectangles? show your calculation. part g what areas do you need to know to find the surface area of the prism? part h what is the surface area of the prism? show your calculation. part i read this statement: “if you multiply the area of one rectangle in the figure by 3, you’ll get the total area of the rectangles.” is this statement true or false? why? part j read this statement: “if you multiply the area of one triangle in the figure by 2, you’ll get the total area of the triangles.” is this statement true or false? why?