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?
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?
You randomly survey students in your school about whether they liked a recent school play. The two-way table shows the results. Find and interpret the marginal frequencies.
The two-way table below describes the members of the U.S Senate in a recent year.
If we select a U.S. senator at random, what's the probability that the senator is a Democrat?