### Tell us what’s happening:

Hello everyone,

Is it correct to make sure that we are at the last index of the array and to get the average:

const getVariance = (array) => {

const mean = getMean(array);

const variance = array.reduce((acc, el) => {

const difference = el - mean

const squared = difference ** 2

acc + squared

squared[array.length -1]

? squared[array.length -1] / array.length

: squared

},0);

return variance;

}

### Your code so far

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Please copy/paste all the editor code showing in the challenge from where you just linked.

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### Challenge Information:

Learn Advanced Array Methods by Building a Statistics Calculator - Step 43