19. which of the following is false?

the cost to mail an envelope and the weight of the envelope is a positive correlation

none, since all of the above are true

the graduation rate in a city and the rate of unemployment in a city is a positive correlation

a child’s age and a child’s shoe size

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?