The average maximum temperature in january for killeen, texas is 59º f. the average maximum temperature in january for buffalo, new york is 27º f. this january, killeen’s average maximum temperature was five degrees below normal, and buffalo’s average maximum temperature was two degrees below normal. how much warmer was this january’s average maximum temperature in killeen than buffalo’s january’s average maximum temperature?

a. 29º warmer
b. 35º warmer
c. 39º warmer
d. 25º warmer

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.