Question

Brianna is ordering a taco. She can order a corn tortilla or a flour tortilla. She can also choose beef, fish, chicken, or zucchini as the filling. She can also choose sour cream or guacamole. Each combination is equally likely. Find the probability that a taco she choses at random has a corn tortilla, fish, and guacamole.

Answer 1

6.25%

Explanation:

In order to calculate the probability of choosing this exact combination we first need to calculate the probability of getting each individual option. We do this by dividing 1 by the total options in each category, like so...

Tortillas: 1 / 2 = 0.50 (there are a total of 2 tortilla choices)

Filling: 1 / 4 = 0.25 (total of 4 filling choices)

Topping: 1 / 2 = 0.50 (total of 2 topping options)

Now we multiply these values together to get the probability of the combination since each combination has the equal probability.

0.50 * 0.25 * 0.50 = 0.0625 ... multiply by 100 to get percentage value

0.0625 * 100 = 6.25%