The average temperature of Kopikoville was reported to be - 16° last year. This year, the average temperature of Kopikoville rose by 7°. Which of the following is true about this year's average temperature of Kopikoville? A.
This year's average temperature of Kopikoville is - 9°.
B.
This year's average temperature of Kopikoville is 9°.
C.
This year's average temperature of Kopikoville is 23°.
D.
This year's average temperature of Kopikoville is - 23°.

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.

you could deduce the conclusion directly using the facts pertaining to the specific situation.

hope this .

answer: the answer is 110