Suppose we randomly select one of the adult passengers who rode on the Titanic. Given that the person selected was in first class, what's the probability that he or she survived?

remolatg
2020-12-24
Answered

The Titanic struck an iceberg and sank on its first voyage across the Atlantic in 1912. Some passengers got off the ship in lifeboats, but many died. The two-way table gives information about adult passengers who survived and who died, by class of travel.

$\begin{array}{cccc}& First& Second& Third\\ Yes& 197& 94& 151\\ No& 122& 167& 476\end{array}$

Suppose we randomly select one of the adult passengers who rode on the Titanic. Given that the person selected was in first class, what's the probability that he or she survived?

Suppose we randomly select one of the adult passengers who rode on the Titanic. Given that the person selected was in first class, what's the probability that he or she survived?

You can still ask an expert for help

asked 2021-01-10

A group of 125 truck owners were asked what brand of truck they owned and whether or not the truck has four-wheel drive. The results are summarized in the two-way table below. Suppose we randomly select one of these truck owners.

$\begin{array}{ccc}& \text{Four-wheel drive}& \text{No four-wheel drive}\\ \text{Ford}& 28& 17\\ \text{Chevy}& 32& 18\\ \text{Dodge}& 20& 10\end{array}$

What is the probability that the person owns a Dodge or has four-wheel drive?

$(a)\frac{20}{80}$

$(b)\frac{20}{125}$

$(c)\frac{80}{125}$

$(d)\frac{90}{125}$

$(e)\frac{110}{125}$

What is the probability that the person owns a Dodge or has four-wheel drive?

asked 2021-05-05

The two-way table summarizes data on whether students at a certain high school eat regularly in the school cafeteria by grade level.

If you choose a student at random who eats regularly in the cafeteria, what is the probability that the student is a 10th-grader?

asked 2020-12-21

A survey of 4826 randomly selected young adults (aged 19 to 25) asked, "What do you think are the chances you will have much more than a middle-class income at age 30?" The two-way table summarizes the responses.

Choose a survey respondent at random. Define events G: a good chance, M: male, and N: almost no chance. Find

asked 2021-03-04

A study in Sweden looked at former elite soccer players, people who had played soccer but not at the elite level, and people of the same age who did not play soccer. Here is a two-way table that classifies these individuals by whether or not they had arthritis of the hip or knee by their mid-50s.

Suppose we choose one of these players at random. What is the probability that the player has arthritis, given that he or she was classified as an elite soccer player?

asked 2021-01-05

A study among the Piria Indians of Arizona investigated the relationship between a mother's diabetic status and the number of birth defects in her children. The results appear in the two-way table.

What proportion of the women in this study had a child with one or more birth defects?

asked 2021-05-02

A study in Sweden looked at former elite soccer players, people who had played soccer but not at the elite level, and people of the same age who did not play soccer. Here is a two-way table that classifies these individuals by whether or not they had arthritis of the hip or knee by their mid-50s.

Suppose we choose one of these players at random. What is the probability that the player has arthritis?

asked 2021-08-14

The two-way table summarizes information about eye color and gender in a random sample of 200 high school students.