Take care everyone have a good rest of the night or day. From a pretty girl and my sister lol.
Me is the one at school and me sister is the one that has her down and the other picture is her when she was little.
FREE POINTS EVERYONE BECAUSE I JUST MET MY RECORD IF YOU WANT TO KNOW WHAT IT WAS JUST ASK IN THE COMMENT OR ANSWER

hi

Step-by-step explanation:

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.