3. Em algumas cidades do interior do estado de São Paulo, é tradição acontecerem festas típicas relacionadas ao cultivo de frutas. A Festa do Vinho, por exemplo, realiza-se a cada 4 anos, e a Festa do Morango a cada 6 anos. A última vez que as duas festas aconteceram no mesmo ano foi em 2010. Esses fato deve acontecer novamente em qual ano?

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.

my guess is

step-by-step explanation: