The arithmetic mean of several measurements is called

Options

A. practical value
B. imaginary value
C. true value
D. ideal value

Answer

To solve the question, "The arithmetic mean of several measurements is called what?", we can follow these steps:

### Step 1: Understand the Concept of Arithmetic Mean
The arithmetic mean is a statistical measure that represents the central value of a set of numbers. It is calculated by summing all the measurements and dividing by the number of measurements.

### Step 2: Analyze the Options
We need to analyze the given options to determine which one correctly defines the arithmetic mean of several measurements.

1. **Practical Value**: This term refers to values obtained from experiments and practical applications, not specifically the arithmetic mean.

2. **Imaginary Value**: This term typically refers to theoretical or hypothetical values that do not have a direct measurement basis. It is not related to the arithmetic mean.

3. **Ideal Value**: This term usually signifies a perfect or exact value, which does not correspond to the arithmetic mean of measurements.

4. **True Value**: This term is often used to denote the actual value that a measurement aims to represent. It can also be interpreted as the mean value when considering multiple measurements.

### Step 3: Conclusion
After analyzing the options, we find that the correct answer is "True Value". The arithmetic mean of several measurements is indeed referred to as the mean value or true value.

### Final Answer
The arithmetic mean of several measurements is called the **True Value**.

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