WPRaffle / Features / Live draw stats

Randomness study

Live Drawing Stats: 75 Draws, 75 Different Winners

We test the randomness of the live draw regularly. In this study we ran 75 live draws over 731 tickets sold in six package sizes, and recorded every winner.

How the Live Draw Works

The Raffle Ticket Generator for WordPress and WooCommerce has a Live Drawing / Pick a Winner feature. With a shortcode on a WordPress page you set the time of the draw and a title and description for up to 10 winners.

When the draw starts, the page cycles through the tickets entered in the raffle for as long as the shortcode says. When the time runs out, the plugin picks the winner or winners at random using PHP’s random functions.

The Test Tickets

For this study we used 731 tickets from a mix of orders. The packages held 1, 3, 5, 10, 50 and 60 tickets.

Package Orders Tickets Share of all tickets
60 tickets 2 120 16.42%
50 tickets 7 350 47.88%
10 tickets 7 70 9.58%
5 tickets 16 80 10.94%
3 tickets 26 78 10.67%
1 ticket 33 33 4.51%
Total 91 731 100%

75 Live Drawings and Their Winners

We ran 75 live draws. Here is every winner with their ticket number.

The 75 live draw winners and their ticket numbers
The 75 live draw winners and their ticket numbers

Summary of Results

75draws run
75different tickets won
0tickets won twice
56%of wins went to the 50-ticket packs, which held 48% of tickets
Package Share of tickets Winners Share of winners
60 tickets 16.42% 6 8%
50 tickets 47.88% 42 56%
10 tickets 9.58% 9 12%
5 tickets 10.94% 14 18.67%
3 tickets 10.67% 4 5.33%
1 ticket 4.51% 0 0%
What it shows

No ticket won twice in 75 draws, and each package’s share of the wins followed its share of the tickets, within the swings you would expect from 75 draws. Buyers with more tickets won more often, which is exactly how a fair random draw should behave.

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