# Two way tables questions and answers Recent questions in Two-way tables
Two-way tables
ANSWERED ### The following two-way table displays information about favorite sports cars that resulted from a survey given to all students at Shore High School. $$\begin{array}{|c|c|}\hline & \text{Corvette (C)} & \text{Porsche (P)} & \text{Ferrari (F)} & \text{Total} \\ \hline \text{Boys (B)} & 90 & 60 & 120 & 270 \\ \hline \text{Girls (G)} & 110 & 141 & 79 & 330 \\ \hline \text{Total} & 200 & 201 & 199 & 600 \\ \hline \end{array}$$ What is the probability that a randomly selected student from this school is a boy?

Two-way tables
ANSWERED ### Use the two-way table of data from another student survey to answer the following question. $$\begin{array}{|c|cc|c|} \hline &Like\ Aerobic&Exercise\\ \hline Like\ Weight\ Lifting&Yes&No&Total\\ \hline Yes & 7&14&21 \\ \hline No& 12&7&19\\ \hline Total&19&21&40\\ \hline \end{array}$$ What is the marginal relative frequency of students surveyed who like weight lifting?

Two-way tables
ANSWERED ### Use the two-way table of data from another student survey to answer the following question. $$\begin{array}{|c|cc|c|} \hline &Like\ Aerobic&Exercise\\ \hline Like\ Weight\ Lifting&Yes&No&Total\\ \hline Yes & 7&14&21 \\ \hline No& 12&7&19\\ \hline Total&19&21&40\\ \hline \end{array}$$ Find the conditional relative frequency that a student likes to lift weights, given that the student likes aerobics.

Two-way tables
ANSWERED ### A group of children and adults were polled about whether they watch a particular TV show. The survey results, showing the joint relative frequencies and marginal relative frequencies, are shown in the two-way table. What is the value of x? YesNoTotal Children0.30.40.7 Adults0.25x0.3 Total0.550.451

Two-way tables
ANSWERED ### What is the second name for a two-way frequency table of categorical data? a. a two-way by two-way table b. a multiple-treatment table c. an equal probability table d. a contingency table

Two-way tables
ANSWERED ### What is a contingency table?

Two-way tables
ANSWERED ### Use the two-way table of data from another student survey to answer the following question. Like Weight Lifting Yes No Total Like Aerobic Yes 71219 Exercise No 14721 Total 211940 What is the conditional relative frequency that a student likes to lift weights, given that the student does not like aerobics?

Two-way tables
ANSWERED ### Please, answer the question: if there is no association between the categorical variables, which of the following is true? a) The observed counts in the two-way table should be close to the expected points. b) The observed counts in the two-way table will be different from the expected points. c) The chi-square statistic will have a large value and the observed counts in a two-way table will be very different from the expected points. d) The chi-square statistic will have a large value.

Two-way tables
ANSWERED ### If a student is selected at random, find the probability the student is a male given that it’s a senior. Use the two-way table below. Two-way tables
ANSWERED ### Please tell whether the expression is TRUE or FALSE. “If the conditional distribution in a two-way table are similar to each other, the P-value of the test is close to zero”.

Two-way tables
ANSWERED ### Use a two-way table to explore the probabilities related to each group or category in the table. Two-way tables
ANSWERED ### Find P(A) using the following table. Two-way tables
ANSWERED ### The following two-way table displays information about favorite sports cars that resulted from a survey given to all students at Shore High School. \begin{array}{|l|c|c|c|c|} \hline & \text { Corvette (C) } & \text { Porsche (P) } & \text { Ferrari (F) } & \text { Total } \ \hline \text { Boys (B) } & 90 & 60 & 120 & 270 \ \hline \text { Girls (G) } & 110 & 141 & 79 & 330 \ \hline \text { Total } & 200 & 201 & 199 & 600 \ \hline \end{array} What is the probability that a randomly selected student from this school prefers Corvettes, given that the student is a girl?

Two-way tables
ANSWERED ### Find $$\displaystyle{P}{\left({A}\cup{B}\right)}$$ Two-way tables
ANSWERED ### Consider a two-way table with two variables: one with 3 categories and the other with 6 categories. How many degrees of freedom does the chi-square statistic associated with the two-way table have?

Two-way tables
ANSWERED ### Find the TRUE answer about a two-way table, please: a) Marginal distributions are usually not presented as percentages. b) There are two sets of conditional distributions in every two-way table. c) Conditional distribution compare cell counts to the table total. d) Marginal distribution describe relationship between two variables

Two-way tables
ANSWERED ### Use the two-way table of data from another student survey to answer the following question. Like Aerobic Exercise Like Weight Lifting Yes No Total Yes 7 14 21 No 12 7 19 Total 19 21 40 Find the joint relative frequency of students surveyed who like aerobics exercise but dislike weight lifting.

Two-way tables
ANSWERED ### Fill in the two-way table. Two-way tables
ANSWERED ANSWERED 