The probabilities of the top-selling menu item of the family restaurants in four towns being vegetarian and different types of non-vegetarian sandwiches are given in the table.
Town Vegetable
Sandwich Non-vegetarian
Chicken Sandwich Non-vegetarian
Ham Sandwich Non-vegetarian
Bacon Sandwich Non-vegetarian
Tuna Sandwich
Town 1 6.63% 5.42% 7.05% 6.19% 5.91%
Town 2 6.84% 7.11% 6.89% 5.69% 6.58%
Town 3 5.97% 6.63% 5.72% 5.86% 5.79%
Town 4 6.54% 5.86% 6.24% 6.24% 6.33%
Total 6.24% 5.77% 6.03% 5.92% 6.27%%
If a family restaurant in Town 2 has a non-vegetarian sandwich as its top-selling

Question

The probabilities of the top-selling menu item of the family restaurants in four towns being vegetarian and different types of non-vegetarian sandwiches are given in the table.
Town	Vegetable
Sandwich	Non-vegetarian
Chicken Sandwich	Non-vegetarian
Ham Sandwich	Non-vegetarian
Bacon Sandwich	Non-vegetarian
Tuna Sandwich
Town 1	6.63%	5.42%	7.05%	6.19%	5.91%
Town 2	6.84%	7.11%	6.89%	5.69%	6.58%
Town 3	5.97%	6.63%	5.72%	5.86%	5.79%
Town 4	6.54%	5.86%	6.24%	6.24%	6.33%
Total	6.24%	5.77%	6.03%	5.92%	6.27%%
If a family restaurant in Town 2 has a non-vegetarian sandwich as its top-selling

anonymous · Answer

what is the probability that it is a tuna sandwhich?

a) 21.7
b) 25.0
c)27.4
d) 62.7
e) 65.8

I only have two days. I'll medal and stuff that you guys do on this website XD

kropot72 · Answer

The probability that it is a tuna sandwich is found by dividing the probability of a tuna sandwich by the sum of the probabilities of all the non-vegetarian sandwiches:
$$\large P(tuna)=\frac{0.0658}{0.0711+0.0689+0.0569+0.0658}=you\ can\ calculate$$