let total = arr.reduce((res,v) => res += v[1], 0);
arr = arr.map(value => [value[0], value[1] / total * 100]);
let benfordLaw = {
  '1': 30.1,
  '2': 17.6,
  '3': 12.5,
  '4': 9.7,
  '5': 7.9,
  '6': 6.7,
  '7': 5.8,
  '8': 5.1,
  '9': 4.6,
};
let percentages = Object.fromEntries(arr);
for (let number in benfordLaw) {
  if (Math.abs(percentages[number] - benfordLaw[number]) > 10) {
    console.log("true");
    return;
  }
}
console.log("false");