Mean of a Vector

easynumpy_basics

Implement vector_mean(x).

Return the arithmetic mean (average) of the 1D array x. (numpy-100 motivates this by creating a random vector of size 30 and finding its mean — here you just compute the mean of the given vector.) No for/while loops.

Constraints

no for/while loops

Your solution

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Hints

Hint 1

a.mean() averages all elements (it's the sum divided by the count).