Quiz 2-3 Review Day 2

Question #1 Yellowstone National Park surveyed a random sample of 1526 winter visitors to the park. They asked each person whether they owned, rented, or had never used a snowmobile. The participants were also asked if they belonged to an environmental organization to determine of there is an association between environmental club membership and snowmobile use for the population of visitors to Yellowstone National Park.

Question #2 Females Males Total Biology 205 185 390 Chemistry 240 250   Females Males Total Biology 205 185 390 Chemistry 240 250 490 Physiology 160 140 300 605 575 1180 1) A female student taking biology. 2) A male student. 3) A biology student given she is female. 4) A male physiology student. 5) A student known to be enrolled in chemistry, that is male. 6) A male chemistry student.

Drink Size Season Totals Spring Summer Fall Small 24 22 18 64 Medium 23 28 19 70 Large 27 29 74 Jumbo 16 21 33 81 98 99 278 #3 What percent of the responses were from respondents who favor small drinks? What percent of those who order Large drinks prefer them in the fall? What is the marginal distribution of Seasons? 4) Write a sentence or two about the conditional relative frequency distribution of the drink size among the Summer season.