The arithmetic mean is 12 and number of observation is 20, then the sum of all observation is*1 pointData insufficient230220240
Question
The arithmetic mean is 12 and number of observation is 20, then the sum of all observation is*1 pointData insufficient230220240
Solution
The sum of all observations can be calculated by multiplying the arithmetic mean by the number of observations.
Step 1: Identify the arithmetic mean and the number of observations. In this case, the arithmetic mean (average) is 12 and the number of observations is 20.
Step 2: Multiply the arithmetic mean by the number of observations to find the sum of all observations.
So, 12 (arithmetic mean) * 20 (number of observations) = 240
Therefore, the sum of all observations is 240.
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