def powerAVG(data):
	"""
	Average power: the amount of work done, amount energy transferred per 
		unit time.
		
	Parameters
	----------
		data: array-like
			2D matrix of shape (time, data)
		
	Returns
	-------
		powerAvgData: 1D numpy array containing average power in a given signal
	"""
	
	powerAvgData = sum(data*data)/len(data)

	return powerAvgData