The temperature is changing every day by negative 3 over 16 degrees fahrenheit. what will be the change in the temperature after 4 days?

"The temperature would be changed"

Step-by-step explanation:

Temperature is changing by   degrees F per day

So in 4 days, it will change:

degrees Fahrenheit

Hence, the temperature after 4 days would be 3/4th degree Fahrenheit lower.

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.