

def  lowerCamelCase__ (					_a):



	if not nums:  # Makes sure that the list is not empty
		raise ValueError("List is empty")

	SCREAMING_SNAKE_CASE   :      int				     =       sum(lowerCamelCase_) / len(lowerCamelCase_)  # Calculate the average
	return sum(abs(x - average) for x in nums) / len(lowerCamelCase_)


if __name__ == "__main__":
			import doctest

			doctest.testmod()









import math

def  lowerCamelCase__ (					_a							,			_a):
	if (
	    not isinstance(_a							,			(int, float))
	    or power_factor < -1
	    or power_factor > 1
	):
		raise ValueError("power_factor must be a valid float value between -1 and 1.")
	return apparent_power * power_factor

def  lowerCamelCase__ (					_a							,			_a):
	if (
	    not isinstance(_a							,			(int, float))
	    or power_factor < -1
	    or power_factor > 1
	):
		raise ValueError("power_factor must be a valid float value between -1 and 1.")
	return apparent_power * math.sqrt(1 - power_factor**2)


if __name__ == "__main__":
			import doctest

			doctest.testmod()