Stats 1001 Unit 2 Milestone 2

126/26 t hat 's 10 0%R ETA KE26 que stio ns w ere a n sw ere d co rre ctly.T he f o rm ula f o r t h e s ta n d ard d evia tio n o f a s a m ple is :S ele ct t h e t r u e s ta te m en t f o r t h e f o llo w in g d ata s e t t h at h as am ean o f6 .7 5 :4, 6 , 7 , 1 0A nsw er c h o ic es a re r o und ed t o t h e h und re d th s p la ce .R ATIO NALEW e c a n , b y u sin g t h e p arto f t h e f o rm ula u nd er t h e s q uare r o ot:N ext, w e c a n , b y s im ply t a kin g t h eT he v a ria n ce is 2 .5 0 a n d t h esta