Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of 5 people took the trip. She was able to purchase coach tickets for ​$300 and first class tickets for ​$1000. She used her total budget for airfare for the​ trip, which was ​$3600. How many first class tickets did she​ buy? How many coach tickets did she​ buy?

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.

do it yourself this is easy

step-by-step explanation: