The probabilities of the top-selling menu item in four towns' restaurants being different types of vegetarian and nonvegetarian sandwiches are given in the table. If the restaurant in town 4 has a nonvegetarian sandwich as its top-selling menu item, what is the probability that it is a ham sandwich?

Question

anonymous · Answer

help 
(A)20.6%

(B)25.3%

(C)60.3%

(D)62.4%

perl · Answer

this is a conditional probability problem

perl · Answer

you are asked, given that you are looking at town 4 non-vegetarian sandwhiches, whats the probability of it being a ham sandwich

anonymous · Answer

i added the percentages and got 25.9

perl · Answer

what is the total of town 4 non-veg sandwiches.

anonymous · Answer

yes you you added the totals right

perl · Answer

now the probability of just ham veg sandwich in town 4

anonymous · Answer

what does that mean?

perl · Answer

ham sandwich in town 4,

perl · Answer

oh i made a typo

perl · Answer

it should be
5.86+6.24+6.24+6.33 = 24.67

anonymous · Answer

yes it is

anonymous · Answer

but what is the next step

perl · Answer

so that will be your denominator , the total

perl · Answer

the numerator is ham sandwich in town 4

anonymous · Answer

oh im sorry im dumb so whats next

perl · Answer

probability = (probability of ham sandwich in town 4) / ( probability of non veg. sandwich in town 4 )

perl · Answer

6.24 / (24.67)

anonymous · Answer

i got 3.94

anonymous · Answer

not 20.6

anonymous · Answer

its b