Created
May 12, 2017 09:33
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grades = [100, 100, 90, 40, 80, 100, 85, 70, 90, 65, 90, 85, 50.5] | |
def print_grades(grades): | |
for grade in grades: | |
print grade | |
def grades_sum(grades): | |
total = 0 | |
for grade in grades: | |
total += grade | |
return total | |
def grades_average(grades): | |
sum_of_grades = grades_sum(grades) | |
average = sum_of_grades / float(len(grades)) | |
return average | |
def grades_variance(scores): | |
average = grades_average(scores) | |
variance = 0 | |
for score in scores: | |
variance += (average - score) ** 2 | |
result = variance / len(scores) | |
return result | |
def grades_std_deviation(variance): | |
return (variance) ** 0.5 | |
variance = grades_variance(grades) | |
return result | |
print print_grades(grades) | |
print grades_sum(grades) | |
print grades_average(grades) | |
print grades_variance(grades) | |
print grades_std_deviation(variance) |
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