Question

asked 2021-06-19

Create and conduct a survey in your class. Organize the results in a two-way table. Then create a two-way table that shows the joint and marginal frequencies.

asked 2021-05-08

Raul is conducting a survey for the school news blog. He surveys 200 senior-class students and finds that 78 students have access to a car on weekends, 54 students have regular chores assigned at home, and 80 students neither have access to a car, nor have regular chores to do. Raul is having a hard time putting the data into a two-way table.
Car No car Chores No chores
a. Copy and complete the two-way table to help Raul figure out the number of students in each situation.
b. Two-way tables often include row and column totals. Add row and column totals to your two-way table. Is there an association between car privileges and having regular chores for these students? Explain your answer in the context of the problem.

asked 2021-05-29

You randomly survey students at your school about what type of books they like to read. The two-way table shows your results. Find and interpret the marginal frequencies.

\(\begin{array}{|c|c|}\hline & \text{Fiction} \\ \hline & \text{Likes} & \text{Dislikes} \\ \hline \text{Non Fiction} \\ \hline \text{Likes} & 26 & 22 \\ \hline \text{Dislikes} & 20 & 2 \\ \hline \end{array}\)

asked 2020-12-21

\(\begin{array}{c|cc|c} &\text { Female } & \text { Male } & \text { Total } \\ \hline \text { Almost no chance } & 96 & 98 & 194 \\ \hline \text { Some chance but } \ \text { probably not } & 426 & 286 & 712 \\\hline \text { A 50-50 chance } & 696 & 720 & 1416 \\ \hline \text { A good chance } & 663 & 758 & 1421 \\ \hline \text { Almost certain } & 486 & 597 & 1083 \\ \hline \text { Total } & 2367 & 2459 & 4826 \end{array}\)

Choose a survey respondent at random. Define events G: a good chance, M: male, and N: almost no chance. Find \(P(C∣M)\). Interpret this value in context.