Answer:
Change on Day 1 = 29.80 °C
Change on Day 2= 30.60 °C
the most change occurred on Day 2
Explanation:
Given a table of days and temperatures, you are asked for the changes each day, and you are asked which day changed the most.
Change
In general, the change in an amount is the difference between the final amount and the beginning amount. Here we have temperatures at the beginning of the day and the end of the day. We presume the change of interest is the difference between the temperature at the end of the day and that at the beginning.
Day 1 change
end of day temp - beginning temp = 18.74 -(-11.06) = 29.80 . . . °C
Day 2 change
end of day temp - beginning temp = 21.29 -(-9.31) = 30.60 . . . °C
Most change
The day 2 change is larger than the day 1 change, so the most change occurred on day 2.