• Liquid_Fire@lemmy.world
      link
      fedilink
      arrow-up
      2
      ·
      1 year ago

      The way I described it, there would be an odd number of flights every day, so the average will also be odd.

      Imagine there was only one flight. Day 1 it leaves Edinburgh and lands at Heathrow. Day 2 it leaves Heathrow and lands back in Edinburgh. Then repeat again. There is exactly one flight every day, so the average is odd.

      • Eheran@lemmy.world
        link
        fedilink
        arrow-up
        1
        arrow-down
        1
        ·
        1 year ago

        Every plane lands and starts, that are 2 fights. Any daily etc. irregularities cancel out over a year. What could still happen is something like a plane landing on 31.12. but not taking off before it is 01.01. Considering that… alright, it does not need to be an even number. And those are exact numbers, not averages.