Which numerical pattern is a linear progression? 1 2 , 2 3 , 3 4 , 4 5 , . . . 1 2 , 2 3 , 3 4 , 4 5 , . ⁢ ⁢ . ⁢ . 1, 3, 7, 13, . . . 1, 3, 7, 13, . . . − 10 , − 20 , − 40 , − 80 , . . . − 10 , − 20 , − 40 , − 80 , . ⁢ . ⁢ . 18, 26, 34, 42, . . . 18, 26, 34, 42, . . .

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.

idn

step-by-step explanation: