An experiment was conducted to compare the mean reaction times to two types of
traffic signs: no left turn and left turn only. ten drivers were included in the
experiment. each driver was presented with 40 traffic signs - 20 no left turn and 20
left turn only - in random order. the mean reaction time to each type of sign was
recorded for each driver. so, for example, individual #1 reacted, on average, within
824 milliseconds to the no left turn and within 702 milliseconds to the left turn
only sign. the design of this experiment most closely resembles a:

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.