def conv_str_series_data(str_series: str) -> list:
    """
    Convert a string of comma separated values into a list of floats

    Args:
      str_series (str): the string that you want to convert to a list

    Returns:
      A list of floats
    """
    str_list = str_series.strip("[]").split(",")
    float_list = [float(x) for x in str_list]
    return float_list