| Facebook * | Q discuss the differences between x EpicCare Link x |Bookmark MyPhoenix | Universit X | Home | Gradebook / ONT/375T: Busines x zy Section 2.3 - ONT/375T: Busines: x + X C https://learn.zybooks.com/zybook/QNT_375T_56670912/chapter/2/section/3 Sign in ... b =zyBooks My library > QNT/375T: Business Data Analytics home > 2.3: Measures of spread zyBooks catalog Help/FAQ Bri Skarsten Tanye Feedback? + Challenge activities CHALLENGE ACTIVITY 2.3.1: Measures of spread. 479994.2881884.qx3zay7 Jump to level 1 A sample of 3 measurements are taken and recorded: x = 6, y = 7 and z = 8 The sample mean is: a = 219+2 = 7.00 3 Fill in the table below. ai (ai - 20)2 Ex: 5.34 y Ex: 5.34 Ex: 5.34 $2 - (2 2:) + (y-3) +(2-3:) - Ex: 5.34 s = V- = Ex: 5.34 3 4 Check Next Feedback? CHALLENGE ACTIVITY 2.3.2: Excel: Standard deviation