Understanding Standard Deviation Name: ________________________________ 1. Without doing any calculations, match the dot plot to the corresponding mean and standard deviation on the right. (A) a) ____ mean = 11, standard deviation = 6.3 b) ____ mean = 11, standard deviation = 3.4 c) ____ mean = 11, standard deviation = 4.1 d) ____ mean = 11, standard deviation = 1.7 (B) (C) (D) 2. Without doing any calculations, match the dot plot to the corresponding mean and standard deviation on the right. (A) (B) (C) (D) a) ____ mean = 10.8, standard deviation = 3.2 b) ____ mean = 6.6, standard deviation = 4.5 c) ____ mean = 10.6, standard deviation = 6.2 d) ____ mean = 9.5, standard deviation = 4.1 3. Jenna owns a donut shop and needs new equipment. She is deciding between two donut depositor machines. The Belshaw depositor creates cake donuts with a mean weight of 26.1 g and a standard deviation of 0.3 g. Moline depositors create cake donuts with a mean weight of 26.0 g and a standard deviation of 0.2 g. Jenna wants each donut produced to be as similar as possible. Which depositor creates donuts with a more consistent weight? Explain your answer using a complete sentence