The amounts below show the change (measured in feet) in water level over four months. What is the average monthly change in water level? 2/5, -4/5, 9/5, 1/5

2/5

Step-by-step explanation:

Average is the ratio of the sum of the data to the sample size

Sum of data = 2/5-4/5+9/5/+1/5

Sum of data = (2-4+9+1)/5

Sum of data = 8/5

Sample size = 4

Average = 8/5÷4

Average = 8/5× 1/4

Average = 2/5

Hence the average monthly change in water level is 2/5

the correct answer to your question is a. 4^4

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