Here is some record keeping from a coffee shop about their paper cups. Cups are delivered 2,000 at a time.
day
change
Monday
+2000
Tuesday
-125
Wednesday
-127
Thursday
+1719
Friday
-356
Saturday
-782
Sunday
0
How
many cups do you think were used on Thursday? Explain how you know

The probability that a u.s. resident has traveled to canada is 0.18 and to mexico is 0.09. a. if traveling to canada and traveling to mexico are independent events, what is the probability that a randomly-selected person has traveled to both? (page 109 in the book may ) b. it turns out that only 4% of u.s. residents have traveled to both countries. comparing this with your answer to part a, are the events independent? explain why or why not. (page 119 may ) c. using the %’s given, make a venn diagram to display this information. (don’t use your answer to part a.) d. using the conditional probability formula (page 114 in the book) and the %’s given, find the probability that a randomly-selected person has traveled to canada, if we know they have traveled to mexico.