Approximately 10% of all people are left-handed. consider a grouping of fifteen people. a.) state the random variable. x = number of people left-handed out of 15 people. b.) write the probability distribution. c.) = p(x=r)=c n/p^r q^n-r n/r= n! /r! n-r! d.) draw a histogram. x: value of random variable y: probability associated with that random variable. e.) describe the shape of the histogram. f.) find the mean. g.) find the variance. h.) find the standard deviation.

< 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⭐

step-by-step explanation:

graph using a few selected

x         y

-1       15

0         6

1         2.4

2       0.96

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734

answer: b f g .

step-by-step explanation: