USER CASE

Student Score Summary

A small application already has student scores. Complete four reusable functions so the application can calculate its summary.

SCENARIO

The application code is already prepared

Do not redesign the application. Your responsibility is to implement the functions required by its specification.

scores = [72, 88, 91, 65, 84]

print("Scores :", scores)
print("Sum    :", my_sum(*scores))
print("Average:", average(*scores))
print("Min    :", my_min(*scores))
print("Max    :", my_max(*scores))

Expected Result

Scores : [72, 88, 91, 65, 84]
Sum    : 400
Average: 80.0
Min    : 65
Max    : 91

FUNCTION SPECIFICATION

my_sumAccept many numbers and return their total.

averageAccept many numbers and return their arithmetic mean. Reuse my_sum().

my_minAccept many numbers and return the smallest value.

my_maxAccept many numbers and return the largest value.

Constraint: For this exercise, implement the logic yourself. Do not solve the task by calling Python's built-in sum(), min() or max().

○ Not completed

INSTRUCTOR SOLUTION

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def my_sum(*nums):
    total = 0
    for n in nums:
        total += n
    return total


def average(*nums):
    total = my_sum(*nums)
    return total / len(nums)


def my_min(*nums):
    minimum = nums[0]
    for i in range(1, len(nums)):
        if nums[i] < minimum:
            minimum = nums[i]
    return minimum


def my_max(*nums):
    maximum = nums[0]
    for i in range(1, len(nums)):
        if nums[i] > maximum:
            maximum = nums[i]
    return maximum


scores = [72, 88, 91, 65, 84]

print("Scores :", scores)
print("Sum    :", my_sum(*scores))
print("Average:", average(*scores))
print("Min    :", my_min(*scores))
print("Max    :", my_max(*scores))

Instructor focus: *nums lets one function accept a variable number of arguments. average() also demonstrates function reuse by calling my_sum().

💻 Complete the Functions

The user-case code at the bottom is already complete.

PYTHON CONSOLE

Ready.

DESIGN CONNECTION

Loop

for n in nums

Operator

+ < > /

Decision

Function

return