Final answer:
To find the mean height of the low tides, add all the given low tide heights together and divide the sum by the number of low tides.
Step-by-step explanation:
The mean height of the low tides can be found by calculating the average of all the given low tide heights. Here are the steps to find the mean height:
- Add all the low tide heights together: 20.22 + 2.64 + 20.22 + 2.64 = 45.72 feet.
- Divide the sum by the number of low tides: 45.72 / 4 = 11.43 feet.
So, the mean height of the low tides is 11.43 feet.