Final answer:
The average change in temperature over five days when it dropped from 67°F to 2°F is 13°F per day.
Step-by-step explanation:
To calculate the average change in temperature over five days when the temperature dropped from 67°F to 2°F, we first find the total change in temperature. This is calculated by subtracting the final temperature from the initial temperature.
Total change in temperature = Initial temperature - Final temperature
Total change in temperature = 67°F - 2°F = 65°F
Since this change occurred over five days, we divide the total change by the number of days to find the average daily change.
Average change per day = Total change in temperature / Number of days
Average change per day = 65°F / 5 days = 13°F per day