The method of finding a solution by trying out various values for the variable is called:

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Error method

Trial and error method

Testing method

Checking method

answer is B.

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Detailed Solution

Concept- Trial-and-error method: In this approach, we repeatedly enter alternative values for a variable into an equation and make a number of attempts until we succeed or give up.
Error method: The error method is an unspecified technique.
Trial-and-error approach: In this approach, we repeatedly enter alternative values for a variable into an equation and make a number of attempts until we succeed or give up.
Testing procedure: Using this procedure, we verify whether or not the equation is valid by setting a specific value for a variable. The testing approach is employed in a variety of fields, including software testing and chemical testing. It is an exact process that yields a test result.
Checking method: According to the definition, checking means inspecting anything to judge its accuracy, quality, or condition, or to find out if something is there. Therefore, the way of checking is to confirm the state at regular intervals.
As a result, the process of determining the best solution by experimenting with different values for the variable is known as the trial and error method.
Hence, the correct answer is option 2.

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