10.4.1. Arithmetic Mean Method

Try these first

1. 1.

   What is the formula used in the Arithmetic Mean Method for estimating missing rainfall data?

   Hint

   Look at the summation formula connected with neighboring stations.

2. 2.

   List one advantage of using the Arithmetic Mean Method.

   Hint

   Think about the ease of calculation!

3. 3.

   What is the primary formula used in the Arithmetic Mean Method?

   • P = 1/n * ΣP_i
   • P = ΣP_i - n
   • P = n/ΣP_i

   Hint

   Pay attention to the structure of the formula.

4. 4.

   True or False: The Arithmetic Mean Method is best used in areas with diverse rainfall patterns.

   • True
   • False

   Hint

   Consider the definition and what it implies.

5. 5.

   Given five rainfall records: 60 mm, 61 mm, 65 mm, 70 mm, and an unknown amount X. The average is 65 mm. Find X.

   Hint

   Apply the average formula to find the missing number.

6. 6.

   Analyzing only the arithmetic mean, a researcher came up with a rainfall estimate that differs significantly from the expected normal rainfall for the area. Discuss potential reasons.

   Hint

   Think about how those factors collectively impact rainfall and data collection.