Devon left a bucket outside her back door and measured the depth of the rainwater collected each day. She reported to her science teacher that in 8 days the water levels were:

Question

9 inches8 inches6 inches8 inches6 inches9 inches7 inches3 inches
What was the mean water level?

Answer 1

To find the mean water level, you need to add all the measured water levels together and then divide by the number of measurements.

The water levels over the 8 days are: 9 inches, 8 inches, 6 inches, 8 inches, 6 inches, 9 inches, 7 inches, and 3 inches.

First, add the levels together:

\[ 9 + 8 + 6 + 8 + 6 + 9 + 7 + 3 = 56 \]

Now, divide the total by the number of days (8):

\[ \text{Mean} = \frac{56}{8} = 7 \]

The mean water level is 7 inches.