The probability that a dessert sold at a certain café contains chocolate is 73%. The probability that a dessert contains both chocolate and nuts is 25%. Find the probability that a randomly chosen dessert contains nuts. Use the formula P(B|A) = P(A and B).

Question

anonymous · Answer

wow is that formula ever wrong!

anonymous · Answer

the p(A and B) is over p (A)

anonymous · Answer

then it is right (whew)

anonymous · Answer

haha alright how do I go about doing this

anonymous · Answer

not clear because you are told the probability of both nuts and chocolate is $.25$ ie. 
$$P(A\cap B)=.25$$ and you are told $P(A)=.73$ if A is the event it is chocolate and B is the event it is nuts
but you are not asked for $P(B|A)$ you are asked for $P(B)$
can't do it

anonymous · Answer

a. 29.2%
b. 48.0%
c. 34.2%
d. 36.1% 
so out of these what would be your guess

anonymous · Answer

@Squirrels