6. the probability that jose shopping for himself will buy a tie is 0.2, the prop
that he will buy a shirt is 0.3, and the probability that he will buy a tie given to
buv a tie given that
he buys a shirt is 0.4. find the probability that he will buy
(a) (2 points) both a shirt and a tie.

assuming you mean addition: addition and subtraction are reverse operations.

step-by-step explanation:

add an image

step-by-step explanation:

< 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

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step-by-step explanation: