Chapter 3 Project girl of whimo To complete this project, print the document and complete the tasks below. Once completed you will need to take photos or scan your completed work and upload it into D2L under the "assessment" tab. See the document titled "projects" in D2L for directions. Remember you can only upload ONE document. There are 2 parts to this project: Part 1: The following data is the cost of 5 subject textbooks: Calculate the mean and standard deviation - to calculate the standard deviation complete the table - You can use either formula, so complete the 2 light gray columns OR the 2 blue columns Cost (Xi) Xi - X ( xi - x ) 2 OR Cost (xi) ( X 1 ) 2 $65 $65 $69 $69 $82 $82 $76 $76 $73 $73 Sum = Sum = Sum = GS + 69 + 82 + 76+73=365 Mean: x = 73 If you chose the gray columns finish completing the standard deviation using the formula: ( 65 - 73 ) + ( 6 9- 13 ) + ( 82-730)+ (76-73)+ 17 E( x1 - x)2 n - 1 S - 1 S = ISOS anut mast 64+ 16+3 6+170 amome ant alcholed = 42-5 If you chose the blue columns finish completing the standard deviation using the formula: (Ex; ) 2 - (asibeM) so n n - mumXEM hisb ers to foldkod s poumenos