Answer: 
Step-by-step explanation:

Answer:
If you have exited the country, you most likely took a plane. Therefore yes there is an association between having been on a airplane and visiting another country.
(Also do u go to CCA? Bc I had the same q on my math quiz in Mrs.Pfeiffer's class)
Answer:c
Step-by-step explanation:
c
M = {-0.5, 0.5}that is the plot