Function plusMinus(arr) {

let pos = 0, neg = 0, zero = 0;

for(let x in arr)
{
    if(arr[x]>0)
    {
        pos++;
    }
    else if(arr[x]<0)
    {
        neg++;
    }
    else{
        zero++;
    }
}

console.log((pos/arr.length).toFixed(6));
console.log((neg/arr.length).toFixed(6));
console.log((zero/arr.length).toFixed(6));
}