Find Variance

Asked in:
Amazon

Problem Description

Given an array A containing N integers, find the variance of the array. Return your answer up to 2 decimal points.

Problem Constraints

1 <= N <= 1000 1 <= A[i] <= 1000

Input Format

First argument is an integer, N, denoting the length of the input array Second line consists of N elements, separated by space

Output Format

Return a float value as specified in the question

Example Input

Input 1: N = 10 A = [99, 81, 4, 74, 9, 79, 45, 25, 44, 86]

Example Output

Output 1: 1034.64

Example Explanation

Mean = 54.6, simply apply the formula of variance to get 1034.64

NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a question? Checkout Sample Codes for more details.

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Asked In:

Amazon

Find Variance

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