Python programming lab 17
- 29. 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
var = variance / float(len(scores))
return var
def grades_std_deviation(variance):
return variance ** 0.5
variance = grades_variance(grades)
print "All of grades:", print_grades(grades)
print "Sum of grades: ", grades_sum(grades)
print "Average grade: ", grades_average(grades)
print " Variance: ", grades_variance(grades)
print "Standard Deviation: ", grades_std_deviation(variance)
