gauss.js

const stats = [... new Array(1000)].map(it => 0);
const makeStat = () => {
  let result = 0;
  for (let i = 0; i < 1000; i++) {
    result += Math.random();
  }
  return result
}

for (let i = 0; i < 100000; i++) {
  stats[Math.ceil(makeStat())]++;
}

for (let i = 0; i < stats.length; i++) {
  if (stats[i])
  document.write(`<div style="width: ${stats[i] / 4}px;">${i}</div>`);
}