# 9 examples of 'how to find the average of a list in python' in Python

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``74def average(item):75    # This sums all the items of a parameter, in this program's case the parameters are lists.76    summing = sum(item)77    # This counts the number of items in the lists.78    counting = len(item)79    # This divides the total sum by the amount of items.80    result = summing / counting81    # This returns the average.82    return result``
``104def test_averageOnList(self):105    items = [0, 8, 4, 10]106    res = BlocklyMethods.averageOnList(items)107    self.assertEqual(5.5, res)``
``59def average(average_window, data):60    window = []61    newdata = []62    for v in data:63        window.append(v)64        if len(window) == average_window:65            newdata.append(sum(window)/average_window)66            del window[0]67    return newdata``
``36def average(a,b):37    return tuple(0.5*(a[i]+b[i]) for i in range(len(a)))``
``11def avg(l):12    """13    Returns the average between list elements14    """15    return (sum(l)/float(len(l)))``
``159def mean_list(x, y):160    res = []161    for i, j in zip(x, y):162        res.append(round(mean(i, j), 3))163    return res``
``220def getAverage(seq):221    """222    Finds the average of <seq>223    >>> getAverage(['3', 9.4, '0.8888', 5, 1.344444, '3', '5', 6, '7'])224    4.033320571428571225    """226    return sum(seq) / len(seq)``
``1def mean(lst):2	# FASTER!!!!!3    return sum(lst)/len(lst)``
``17def variance(lst, avg):18    var_list = []19    for num in lst:20        var_list.append((num - avg)**2)21    variance = sum(var_list) / len(var_list)22    return variance``