A normally distributed data set has a mean of 70 and a standard deviation of 8. What
percent of values falls between 56 and 76?

the answer is 4.8 units on e2020.

< 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⭐

answer: y=4000x+14000

step-by-step explanation: