p(a)=.66 p(b\a)=.51 and p(B\Ac)=.27

a. p(Ac)=

b. p(A upside down u b)=

c. p(Ac upside down u b)=

d. p(a\b)=

the c is like a number with an exponent...the c would represent he exponent....

Please note that, we have:

P(Ac) = P(A|B) = 0.51;

P(A intersected B) = P(B intersected A) = P(A) * P(A|B) = 0.66*0.51 = 0.336;

P(Ac intersected B) = P(Ac) * P(B|Ac) = 0.51 *0.27 =0.138

P(B) = 1 - P(A) = 1 - 0.66 = 0.34,

and, finally:

P(A|B) = P(A intersected B) / P(B) = 0.336/0.34 = 0.988

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