Question

Given an array of real values, return the average of the numbers. If the array contains no element, return a default value 0.0. getAverage([2.0, 3.0]) → 2.5 getAverage([1.0, 2.0, 3.0, 4.0, 5.0, 6.0]) → 3.5 getAverage([]) → 0.0

Answer 1

Note: As you have not mentioned programming language.Hence , I did it in python.

Code:

def getAverage(a):
    avg = 0.0
    if len(a) == 0:
        return avg
    avg = sum(a)/len(a)
    return avg

print(getAverage([2.0, 3.0]))
print(getAverage([1.0, 2.0, 3.0, 4.0, 5.0, 6.0]))
print(getAverage([]))

Output: