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Language/Type: Python lists traversals cumulative algorithms

Write a function named compute_average that computes and returns the mean of all elements in a list of integers. For example, if a list named a contains [1, -2, 4, -4, 9, -6, 16, -8, 25, -10], then the call of compute_average(a) should return 2.5.

Constraints: You may assume that the list contains at least one element. Your function should not modify the elements of the list.

Function: Write a Python function as described, not a complete program.

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