Question

1. the ncaa division 1 mens basketball tournament (\march madness\) has been played since 1939. once the teams are selected for this tournament, the first round of play begins with 64 teams going head - to - head in a single elimination format, meaning that half of the teams are eliminated each round. based on the scatterplot, describe the relationship between the number of teams left in the tournament and the round number. 7. for their final project in ap statistics, janae and roderick collected data from 73 of their schoolmates. two of the questions on their survey asked, \what is your grade level?\ and \do you own a pet?\. the table shows the responses categorized by grade level and whether the schoolmate owns a pet.

	yes	no
sophomore	10	13
junior	6	5
senior	15	7

which of the following graphs is most appropriate to display the relationship between grade level and pet ownership? a) a scatterplot b) a boxplot c) a segmented bar graph d) a back - to - back stemplot e) a dotplot

Explanation:

A segmented bar graph is used to show the relationship between two categorical variables. Grade level (Freshman, Sophomore, Junior, Senior) and pet - ownership (Yes, No) are categorical variables. A scatterplot is for two quantitative variables, a boxplot for comparing distributions of a quantitative variable across categories, a back - to - back stemplot for comparing two quantitative data sets, and a dotplot for visualizing the distribution of a single quantitative variable.

Answer:

C. A segmented bar graph