Maridel wants to find out how many of her classmates plan to come to the next football game. there are 800 students in her school. she selects a sample of the population by putting the names of every student into a bag and drawing out 100 names.

which statement(s) describe her sampling method? check all that apply.
a) her method will produce a biased sample.
b) her method will produce a valid sample.
c) her method will produce a random sample.
d) her method will produce a representative sample.
e) her method will produce an invalid sample.

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.