A weather balloon is released at an elevation of 60.25 meters. Its elevation changes each hour after its release. Ascents are represented using positive numbers and descents are represented using negative numbers. The table shows. the change in elevation at the end of each hour. Hour 1 2 3 4 -8.5 Elevation Change (in meters) -3.45 4.25 -9.55 Part A What is the total change in the elevation of the weather balloon at the end of four hours? Show your work. anyone

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.

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step-by-step explanation:

do you have an easier question cause this shh is hard like theheck

step-by-step explanation: