x = [1,2,6,9,7,7,1]
 
def closest_to_average(lst):
 
    """ Busca na lista o valor mais próximo da média.
 
    Parâmetros:
        lst list: Lista de números a ser verificada.
 
    Retorno:
        numérico: Valor mais próximo da média.
    """
 
    avg = sum(lst) / len(lst)
    diffs = {value: abs(value - avg) for value in lst}
 
    return min(diffs, key=diffs.get)
 
print(closest_to_average(x))
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