What is the standard deviation of this data? round your answer to the nearest hundredth of a number? 10 12, 8, 2

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

2 2/3, 2 1/4, 2 1/5, 2 1/8

step-by-step explanation:

answer to ttm