Find standard deviation

132 8 Let us denote by x the price of gas and suppose we are given the information that Ex = 2596.3 and Ex2 = 337064.63 The standard deviation is: (Please choose the best answer.) a) 1.3656 O b) 1.1390 O c) 1.2500 Od) 1.1686 O e) 1.2973Question 23 (1 point) Saved Suppose we sample 20 gas stations in Guelph, and observe the following prices (cents) for one litre of regular gas. Let the following stemplot represent the sample values where the leaf are decimals. Stem Leaf 127 9 128 344 129 0334678 130 012568 131 02 132 8 Let us denote by x the price of gas and suppose we are given the information that Ex = 2596.3 and Ex2 = 337064.63 The standard deviation is: (Please choose the best answer.) MacBook Air