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#num_list([1,2,3,4,5,6])


    

In [23]:

    

def mean_num_list(list): 
    sum_of_num_list = 0 
    len_of_list_contents = 0
    for item in list: 
        sum_of_num_list += item
        len_of_list_contents= len_of_list_contents +1
    return sum_of_num_list/ len_of_list_contents


    

In [24]:

    

mean_num_list([1,2,3,4,5,6])


    

    
Out[24]:





3.5

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