Match the pairs of variables with the type of relationship they show.
tiles
an increase in the birth rate
and a decrease in the death
rate
an increase in the urban bird
population and an increase in
airplane accidents
a decrease in deaths related to
heart disease and an increase
in air travel
pairs
correlation
arrowboth
causation
arrowboth
no relationship

For which rational expression is -2 an excluded value of x?

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.

Which strategy is used by public health to reduce the incidence of food poisoning?