Javascript Raffle Randomness

raffle.js

// Basic random number function to select raffle ticket
// Pass # of tickets as parameter

function raffle(tickets) {
  return Math.floor((Math.random() * tickets) + 1);
}

var results = {
  1: 0,
  2: 0,
  3: 0,
  4: 0,
  5: 0,
  6: 0,
  7: 0,
  8: 0,
  9: 0,
  10: 0
};

// Run i times add results to associative array
for(i=0; i<10000000; i++) {
  results[raffle(10)] += 1;
}

// Show results distribution
console.log(results);