What proportion of the sample is female?
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
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?
In 1912 the Titanic struck an iceberg and sank on its first voyage. Some passengers got off the ship in lifeboats, but many died. The following two-way table gives information about adult passengers who survived and who died, by class of travel.
Suppose we randomly select one of the adult passengers who rode on the Titanic. Define event D as getting a person who died and event F as getting a passenger in first class. Find P (not a passenger in first class and survived).
The two-way table shows the eye color of 200 cats participating in a cat show.
Make a two-way relative frequency table to show the distribution of the data with respect to gender. Round to the nearest tenth of a percent, as needed.
A random sample of 1200 U.S. college students was asked, "What is your perception of your own body? Do you feel that you are overweight, underweight, or about right?" The two-way table summarizes the data on perceived body image by gender.
What percent of respondents feel that their body weight is about right?