Will medal and fan and ! the probability distribution of x, a discrete random variable, is given in the table. what is the expected value of x?

x probability
0 0.2
1 0.1
2 0.4
3 0.2
4 0.1

Hence, the expected value of x is 1.9.

Step-by-step explanation:

Since we have given that

xProbability

00.2

10.1

20.4

30.2

40.1

So, The expected value of x is given by

Hence, the expected value of x is 1.9.

< 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⭐