export function weightedAverage(values: number[], weights: number[]): number {

  let avg = 0;

  for( const index in values) {
    const value = values[index]
    const weight = weights[index];
    
    avg += value * weight;
  }

  const avgPon = weights.reduce((prev, curr) => prev + curr ,0)

  return avg / avgPon;
}