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The table summarizes the distribution of age and assigned group for 90 participants in a study.

One of these participants will be selected at random. What is the probability of selecting a participant from group A, given that the participant is at least 10 years of age?

The table summarizes the distribution of age and assigned group for 120 participants in a study. 

One of these participants will be selected at random. What is the probability of selecting a participant from group A, given that the participant is at least 10 years of age?  

The table summarizes the distribution of age and assigned group for 120 participants in a study.
One of these participants will be selected at random. What is the probability of selecting a participant from group A, given that the participant is at least 10 years of age?

For 100 neurons, the table summarizes the distribution of classification and cell body diameter.

One of these neurons will be selected at random. What is the probability of selecting a neuron with a cell body diameter that is less than or equal to 30 micrometers, given that it is not classified as a motor neuron? (Express your answer as a decimal or fraction, not as a percent.)

A department store sells pants in three lengths: short, regular, and long. The table summarizes the distribution of pant length, by color, for all the pants in the store.

A pair of pants is selected at random. What is the probability of selecting a pair of pants that is brown, given that the pair of pants is regular length? (Express your answer as a decimal or fraction, not as a percent.)

Each rock in a collection of 70 rocks was classified as either igneous, metamorphic, or sedimentary, as shown in the frequency table.

If one of these rocks is selected at random, what is the probability of selecting a rock that is igneous?

Each of 185 animals can be classified as one of three species, as shown in the frequency table.

If one of the animals is selected at random, what is the probability of selecting an animal of species Y?

The table shows the distribution of people in a certain city by age group.

If a person in this city is selected at random, which of the following is closest to the probability of selecting a person who is greater than 65 years old, given that the person is at least 18 years old?

The table shows the distribution of people in a certain city by age group.

If a person in this city is selected at random, which of the following is closest to the probability of selecting a person who is greater than 65 years old, given that the person is at least 18 years old?

At a convention center, there are a total of 375 visitors. Each visitor is located in either room A, room B, or room C. If one of these visitors is selected at random, the probability of selecting a visitor who is located in room A is 0.48, and the probability of selecting a visitor who is located in room B is 0.16. How many visitors are located in room C?

A basket contains 7 shirts, of which 4 are green. If a shirt is selected at random from the basket, what is the probability of selecting a shirt that is green?

A bag contains only yellow marbles and red marbles. The probability of selecting a yellow marble from the bag at random is \( \frac{8}{17} \). What is the probability of selecting a red marble from the bag at random?