WILL MARK BRAINLIEST YOU HAVE TO FOLLOW THE LEARNING TARGETS

C

Step-by-step explanation:

1): Divide 147 by 4 (I got the 4 because there is 4 letters)

2): From 147 / 4 you get 36.75, since 36 is the amount of completed patterns you subtract that from 36.75 and get .75 left over. Now we know that .25 is one fourth of 4, so we go down the pattern subtracting .25 from .75 every time we go through a letter.  Now we do this until .75 is 0 which is  only 3 letters.  The 3rd letter of the pattern is C, so the answer is c. (I am sorry if that is confusing, these types of problems are harder to explain).

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.