A coin has heads on one side and tails on the other. The coin is tossed 12 times and lands heads up 4 times. Which best describes what happens when the number of trials increases significantly? A. The observed frequency of landing heads up gets closer to the expected
frequency based on the probability of the coin landing heads up.
B. The observed frequency of landing heads up will always be 1/3 of the number of
tosses.
C. The expected frequency based on the probability of the coin landing heads up
gets closer.
D. The expected frequency based on the probability of the coin landing heads up
gets closer to the observed frequency.

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.