Students in a Spanish club visited several countries over summer vacation. Eleven traveled to Spain, while 19 visited Costa Rica and 24 traveled to Mexico. Five students visited Costa Rica and Spain while 6 students traveled
to Costa Rica and Mexico. Eight students went to both Spain and Mexico, and 4 students went to all three
countries. If there were 47 students in the Spanish club, how many didn't go to any of the three countries?

Ahiking trail is 6 miles long. it has 4 exercise stations, spaced evenly along the trail. what is the distance between each exercise station?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.