Put in order 2.71, 2. 3/4, square of 5, 5 over 2

From the lowest to the highest number:

√5

5/2

2.71

2 3/4

Step-by-step explanation:

Let's put in order from the lowest to the highest number:

√5 = 2.236

5/2 = 2.5

2.71

2 3/4 = 2.75

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.