1. At a local amusement park, 70% of the rides are made for kids who are 48
inches and taller. If there are 80 rides in
total, how many are made for kids who
are 48 inches and taller?

56

Step-by-step explanation:

first of all there are 80 rides in total. 70/100 is equal to 70%. So, multiplying 70% by 80 gets you with 56!

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.