The video tutorial explains how to handle missing function arguments by using default values. It demonstrates how to define parameters with default values and use if statements to manage conditions where arguments are not provided. A practical example is shown where a function is called with and without arguments, illustrating how default values prevent errors and allow flexible function calls.

What happens when a function is called without any positional arguments?

Explain the significance of default values for parameters in a function.

How can you check if a parameter is set to None in a function?

What is the effect of passing only some arguments to a function with default parameters?

Describe how to specify a parameter using the name keyword when calling a function.